I'm My Own Grandpa Puns

I'm out to dinner with my family and my grandpa starts sniffling a bit. So he pulls out one of his super old patterned handkerchiefs and says "my nose keeps running". He then quickly grabs his nose, handkerchief in hand and yells "got it!" super loud in the restaurant were at. While he's laughing at his own joke he goes "that's funny right there" and keeps laughing and partially retelling the joke.

I'm proud to be his grandson.