They both apparently poop in things that aren't toilets, at least if this Deadspin story is to be believed. Arenas, of course, pooped in Andray Blatche's shoe, whereas Morgan decided to poop in a Gatorade bottle.
↵At this point, my reaction mirrors Ron Burgandy's from Anchorman. What? You pooped in a Gatorade bottle? How'd you do that? Heck, I'm not even mad; that's amazing.