I'm heading straight for Vespucci Beach, and then I'm driving right off the end of Pleasure Pier and into the water. Bailing from the sinking car, then going to look for some sharks to fuck with.
When I find one I'm going to see if I can convice it to eat me by hitting it in the nose a couple of times.
Hopefully I succeed in my attempts and Big Red Chunks start flying everywhere. And whoever the starting character is ( Michael, Trevor or Franklin ) starts screaming and hollering in agony until they are slowly dragged under the water, gurgling their last desperate breaths.
Afterwards I will pause the game for a second, go outside and have a pleasant post-orgasmic smoke, hopefully feeling satisfied.