About being evil:
Putting aside the DM by DM variation of alignment (thus no stright alignment answer can ever be given), here's an easy way to rectify that.
Dislike animals as part of your character and the same time remeber to add in some characteristics to help you become good , such as having a softspot for children and elderly. Set up a situation where you'll be hurt or almost hurt by a horse. Cultivate a hatred for horses, you now have as good a reason as any for killing horses. Next, do more good deeds, like saving people (not difficult to find those). Depending on DM, saving sentient life may prove more "good" than animal killing
btw, i've always disliked bring alignment to any argument, it does nothing at all.
About being a good sport or playing some MMORPG:
Our group has played since first ed (for D&D anyway). Theres not much we've not done, from serious RP, to the numbers game to what not. All of those are facets of the same D20 which is an RPG. This little exercise is part of the same D20, except it helps our group isolate and fix loopholes.
Heres something to think about
There is no correct way to play, everyone like different things about a game at different points of time in their life. As long as the game players have no complaints, it is perfectly acceptable
Pax:
A good point about the bullrush. However, if it was a confined space, with no visible exit, would the animal not be forced to attack? As for the bait the theives' guild trick, its been done that in another campaign

. Well killing things to learn how to kill things better.
That description of killing things to learn to kill things better would fit most nobles hunting for sport.
Regarding the challenge thing. I double checked the DMG to see if my memory was wrong and it said this at the start of the chapter
"When the party defeats monsters,m the DM awards the party XP". In fact other than the story award, there is little talk regarding challenge, goals or what not
Caliban:
Regarding the charm/control thing, that opens another can of worms. For example, would a warrior mounted on a warhorse net you the horse xp if you defeated both? Would the horse not be considered controlled?
Since Charm monster/Dominate lasts for days on end, in a astral/etheral blocked dungeon where the caster sends these charmed/dominated in attacking waves, does that mean you net 0 xp for the entire process if the wizard uses a single teleport to escape into a scry protected area?
Using the straight defination of XP reward in the DMG, for summons, i agree, for charm (and for that matter leadership) i don't.
As for the reputation thing, yes i know it would be silly, i'll place that as a RP disadvantage though. Nothing that can't be solved with some creative thinking. It would also be a hush hush affair, so few would even know
KaeYoss:
Just a clarification. Actually it wasn't poaching. It was perfectly legal for whale hunting and such (for a time at least). It would have been as evil at that time as it was for anyone doing their job.
As for the little girls, well i would tell them
"Hey little girl, here's a dog. Its just like a horse with a long snout and 4 legs!"
hammymchamham:
Thats a good point, i helping evolution along
Fast Learner:
There is a difference here from your monopoly example. Its using the game's rules for maximum advantage (btw our entire group come up with these ideas as well), though your temperature idea is interesting
