when I'm high skiing I go to deep deep deep deep pow an just pull it out an pee
when I'm high in the pool I just pee
when I'm high else where I tend to open the stall door and just pee w/o looking an lead against something
when I'm not high an I just take empty bottles my roommate leaves on my side an pee in them, then close them and put them back on his desk. (he has yet to throw any of them out, I end up doing it out of disgust)