Try not to sit too long if it's your tail bone, it may feel better but once you get up you will regret it! Trust me. Put some ice on it and don't strain yourself, you may be unable to bend over or...
No, but I have seen situations where the dog (male) finishes his business, and wants to leave, and gets turned around butt to butt. The reason he cannot leave is that the female's birth canal muscles...