I took the same sign to his shows for several years. It said:
"I'm a teacher. Will you sign me for show and tell?"
One time he read it out loud along with 2 others. During the encore, Brian Riddle didn't come get me. The people with the other 2 signs were brought on stage.
I decided to go to another show 10 days later. He read the sign again. This time, Brian came up to me during "Yesterday" and said, " Come on teacher. Bring your sign and come with me."
He signed my arm and I got it tattooed the next day.
The rest... is history.