What jokes or funny things have you encountered because of dialects?

In the northeast, the roe deer is an animal, which is used to describe people who are stupid. Once several friends went to the northeast to play together, and one of them pointed to the distance and said,' Look at that silly roe deer'. Another guy in the northeast who didn't know that we were referring to him suddenly got angry. Later, it was explained clearly, only to find that the original meaning of roe deer is stupid.