Answer this first: How many years can Snape stand Sokka before snapping?

I think the length of time between now and Sokka's death would totally determine how much torture's involved, don't you? I mean, he'll have up to a week, but I don't see it being out of the question for Snape just to get it done so he doesn't have to deal with Sokka.

I, myself, think slow torture would be just so apt. XD