Yep dogs rolling in crap is a "thing" :XD:
Actually they do it to disguise their own smell to help with hunting. They same way some of those semi nutty bow hunters spray themselves with deer piss :wtfsmilie:
The only exception to that is the bearded collie I posted above who during a palatability trial ( we were testing dog pretzels ) she took one out of her bowl and dropped it on the ground and rolled in it. In all my years owning dogs I have never seen them roll in something that wasn't crap and or disgusting dead animals or some sort of repulsive shit.