Matar a un caracol

killing a snail only takes two seconds. You don't even have to step on it, so you can save the worry of having it attached to the sole of your shoe and having to look at it to check if it's really dead. To kill a snail you just have to pick it from your favourite plant -which has actually been eaten by that snail with a frantic hunger- or, even better, ask someone else to pick him up from there. Having done that, ask that someone to take the snail out of what you consider your territory. Point out that you don't want to cause any damage or trauma to the snail. Actually you don't want to kill him, but you can't help doing things your way, even knowing that death is the only possible ending. "Throw it on to the neighbour's terrace down there.", is what you suggest, pointing four meters down. "Carefully" is the last thing you say before that someone looks daggers at you and throws the poor snail away. Carefully. But four meters is just too much for a snail freefall. So he won't venture to another terrace full of juicy plants, and far from you, as you have planned. He will stay on his own, surrounded by a little slimy puddle, and it'll take you a couple of days to understand that snails don't move that slow.
Killing a snail just takes someone else. You won't know whether it was the broken shell or that blow on his fragile body that killed him. But you will have killed him anyway.
And you'll feel shitty afterwards.