In Warcraft III, during all the warring hubbub you might notice the occasional random animal running around the landscape. You can ignore them or attack them. They don't drop any treasure or put up much of a fight, so there's no real point in doing either. Unless you just want to test how sharp your swords are.

But, if you get particularly bored, you can try clicking on them... which doesn't do a whole lot. Click it about four dozen more times and...

Ka-freaking-boom. The critter explodes with a mushroom cloud, flying giblets, and ground deformation. It's pretty intense. Kinda makes me wonder what the creatures of Azeroth eat.

Unfortunately, while the explosion is pretty awesome, it doesn't actually damage anything. Anything other than the critter that self-destructs, that is. So you can't use it as some kind of stealth bomb thing.