I've seen some threads about amusing rear ends injuries... And let me add one more to the forum, about butt-biting dogs are other animals.
There's a lot of examples, in Woody Woodpecker's cartoons and more, many more...
But I must admit I'm searching for scenes where female characters gets bitten.
There's Tom biting Mammy Two-Shoes, but I heard there's exist a scene with a woman dogcatcher suffering of this.)
Hope this thread will inspire you and remember you some scenes!
A plus !