Anal sex is having something of a renaissance right now, and while I'm not going to judge what you do in your bedroom, there are definitely some things you shouldn't put in your butt. Like a fish, for example. Or two fish.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.