My 3 foot 5 inch gnome sorcerer, 11th level with a 6 Str, had to make a crucial jump check for a standing vertical leap in this weekend's game session. He of course has no ranks in jump, and therefore has a net -2.
The party was teleporting to a safe location from the underdark. We had retreated to a tunnel we thought was safe, but Sully, the gnome, could not take the entire party in one casting. He had to leave behind one dwarf and his riding lizard, with a promise to come back for him instantly. As the rest of the party teleported out we just glimpsed the two displacer beasts approaching. Sully knew he had to hop back quickly.
The dwarf was new to the party and did not know the routine related to the spell. He ordered his riding lizard to climb up the wall of the tunnel, to the ceiling, apparently in an attempt to buy time and avoid the displacers. When Sully teleported back to the spot he had just left, he looked up to see the dwarf a few feet above him. And the displacers were already attacking. Sully couldn't explain well enough to convince the stubborn dwarf to come back down to ground level because he had to touch him to affect him with the teleport spell.
So I had to make a jump check, admittedly not by much but not something this character usually does. And for a standing vertical leap to boot. Somehow I made the jump check, grabbed onto the dwarf, and then made the concentration check to cast teleport while threatened by the displacer beasts, porting to safety. All in all a fun, tense moment out of what we had expected to be a routine escape to end the session.