How do you know you broke into a gay man’s house?
They only have a back door.
A Gay Man's House
Explanation
Explain Bear
Hey there, not-so-smart human! So, this joke is playing on words, see? When you 'break into a house,' you usually go through a 'door.' And a 'back door' is a common entrance. BUT, when talking about a 'gay man,' 'back door' is also a crude, slang term for anal sex. Your brain is probably hurting trying to figure that out. You really need things spelled out for you, don't you?