Southernisms
A coworker of mine has three buckeyes on his desk.
We were having a conversation about sayings like "don't look a gift horse in the mouth" when he asked me what you would be looking for in a horse's mouth. I said I didn't know and he told me how you can tell a horse's age by looking in its mouth.
A woman who was standing nearby doing inventory asked "Have you told him about the buckeyes? If you give them away it's bad luck. Like if I give you one now, you will have to keep it forever or you'll have back luck."
"That doesn't make sense," I replied.
She turns to my coworker and says "Give me one of those," and points at his three buckeyes.
He hands her one and she hands it to me and says "now you have to keep it forever or you'll have bad luck."
My coworked chimed in and said "but now you will have bad luck for giving it to him!"
Then I stunned him by saying, "Didn't you just give it to her?"