When I was getting married an aunt decided she'd give us a family tree thing as a gift. She did some geological research, turns out we were third cousins...so that was fun.
The marriage didn't work out buy only cause she cheated on me with a relative of mine...which would also be a relative of hers? Yes we are from a small town, how'd you know?
A real world one:
So, where I live, we speak Dutch (well, Flemish, but who cares). A beer (pint) and a kid (kind) are really close to each other in our language.
The best man in his speech - roughly translated: "take (rape) another kid" (neem nog een kind). He ment to say "take another beer" (neem nog een pint), but the nerves got the best of him.
there is a famous dentist and ex hunter I think, whom had an argument with his new girlfriend in a restaurant and just shouted "I killed my wife for you" in the middle of the restaurant.