This is about as derp as Kharma does, lol
The trick with Tallulah is moving fast enough to catch her in it
I don't think Bimmer has a derp.
EDIT: Yes, that's a prong on Tallulah. It's the only thing that doesn't rub the hide off of her neck. We were just getting ready to go for a walk, which generally brings on the derpitude