Probably one shouldn't drink a pineapple shake while pseudo-meditating, but Jason's not the type to let that kind of guideline bother him. Besides, if anybody else is up here, it'll let them know immediately that he's not a jumper.
He shouldn't be here, because being discovered by the wrong people will kind of ruin all his plans, but at the moment, he couldn't care less. It's enough to sit quietly, hood up, slumped, taking occasional sips from the straw. It's a little like being home, though that concept is confused and he doesn't want to think about it too hard right now. There's nowhere to go and nothing to do and this is exactly what he wants to feel.