Somebody shot my bunny!
Seriously, when rabbits are completely relaxed they will throw themselves over and sometimes even lay on their backs with their paws in the air. If you have never seen it before it looks like you dear sweet pet bunny has just suffered a coronary or that someone shot them. Of course when you see this, your first temptation is to poke them in their cute white bellies, but this is ill advised.
Speaking of bunnies, due to popular demand we have added a second page of Disapproving Rabbits.