photo finish
A man moves into a nudist colony. Sometime later, he receives a letter from his mother asking for a current photo of himself in his new location.
Too embarrassed to let his mother know that he now lives in a nudist colony, he takes a photo of himself, cuts it in half, and sends her the top piece.
A few weeks later, he receives another letter from his mother, this time asking him to send a picture to his grandmother as well. Again, he takes a photo of himself, cuts it in half. This time, though, he accidentally sends the bottom half of the photo.
A few weeks later, he receives a letter from his beloved grandmother which reads, “Thank you for the picture. Change your hair style… it makes your nose look too short!”