jontherev said:
Yes, but Expeditious Retreat gives an enhancement bonus to speed. That is different from the monk's speed. This is beside the point, but I wonder if they meant for the slippers to give speed/2 instead of the flat 15' (meaning halflings would only get 10'). Though, it does make sense that shorter characters should be able to travel vertically faster than their taller cohorts. If this was actual climbing, I would agree with you. Or even if it was the spell Spider Climb, since you are moving with both hands and feet.
This is irrelevant. The Boots have a limit of 15. It matters not that the movement speed of the character is increased with Expeditious Retreat, the movement speed of his boots is not increased. The enhancement is not cast on the boots, it is cast on the creature. The boots are increasing or decreasing whatever speed the creature has to a maximum of 15.
If the boots said Speed / 2, then you would be right. But, the boots do not say that. Only the spell says that.
I do not see why you are having so much difficulty with this.
If the character is Hasted, then he could climb higher in a round since he could use his speed for both the partial and normal action.
Galfridus said:
As for Spider Climb movement: the spell description says you climb at half your speed. Given that your feet get sticky, it seems reasonable to me that it incorporate enhancements to that speed. The DMG does say that the Slippers give you a 15' move, though. Personally, I would ignore that in favor of the spell desc (does a heavily armored gnome get a 15' climb move?), but by the rules it is always 15'.
How the spell works is basically irrelevant to how the magical item works.
If you change the Boot speed (which is explicitly defined), you should also change the fact that the hands are not required when using the item.
The point is that you either leave all items as be (the practical method), or you pick and choose which portions of which items are changed and which are not, or you change all items to correspond to their spells.
But, what a nightmare!
Where do you draw the line?
Boots of Haste can no longer be used in non-consecutive rounds because the spell does not give that ability. A Broom of Flying cannot be called to the user because the Fly spell does not have that ability.
Dispelling a Carpet of Flying allows a character to float towards the ground on it because the Fly spell does have that ability and the item says that it works just like a Fly spell. But, if the item does not say that it works just like the spell used to create it, then it works as per the description of the item, not as per the description of the spell.
jontherev said:
Yes, the slippers DO prevent this. You need a 24 strength to pull off the halfling (20 + caster level 4=24). A giant bull with a 24 strength could buck the halfling off. A frost giant with 29 strength could not do this the same way, but would need to actually PULL him off. Moving surfaces wouldn't effect the slippers imo unless they shook with the force of 24 strength.
Again, the SPELL says this. The item does not. As far as the item is concerned, anyone who could lift the halfling off the ground should be able to lift him off a vertical surface.
jontherev said:
No need for histrionics.
Sorry. I forgot the smiley face.

jontherev said:
Actually, you are partially correct. A non-monk, non-boots of S&S-wearing halfling is limited to a total 5' (if he's 2.5' tall) high jump. And his hands would be 5' off the ground, not his feet. Still, I was going for cinematics here, so this would be sufficient. After all, the giant's rump is a perfectly nice landing pad. He could just walk the rest of the way.
Unrealistic cinematics is fine if you are in a movie like Crouching Tiger, Hidden Dragon. But, the non-magical / non-supernatural portions of the DND rules (with the exception of facing and a few other minor areas) are semi-realistic and the Giant's "rump" would still be about 6 feet off the ground. Kind of hard to get that high with his feet without some form of magic.
I guess he is now running up the Giant's leg from the calf.
jontherev said:
This is a gray area. I know there's no facing in 3E, but things happen. You can't just prevent someone from doing this because 'there's no facing in 3E'. It should, as is, possible. And when this happens, unfortuneately, facing pops into play since the giant can't see his back. This is different than a rogue saying, "I walk up to the giant and stab him in the back."
How is it different? In both cases, you are attempt to target a specific part of the body. Sounds kind of weak.
jontherev said:
While I'm here, how do you rule sneak attacks vs. giants? By the rules, no vital areas are in limbs, so no sneak attack. Apparently, veins, arteries, and achilles heel are not vital. So, by the letter of the rules, small pc's can only sneak attack giants with ranged weapons, or by using a technique like the one presented in this thread. Or, by using a reach weapon I suppose.
How do you handle impossible things?
Well, they are impossible. You cannot do it in the manner that you suggest. So, no sneak attack against extremely large creatures unless you can get up to sneak attack range. That's ok. No sneak attack against undead or contructs either. You cannot reach a vital area at all on them. So, impossible.
Pros and Cons of being small.
Medium sized creatures should have the same problem with huge humanoid creatures. Oh well. Who said that life (especially in the game) is fair.