The Art Of Grammar Puns

Jenna Bush Hager interviews her dad (Bush 43) for an NBC special on the opening of his art exhibition at the Bush Presidential Library. About a minute in, he slips in a pretty good dad joke:

Jenna: Do these people know that you are painting them?

Bush: Sort of. There's no telling how these people are going to react. I think I told Tony [Blair] I was painting him and he sort of brushed it off.

Jenna: No 'art pun' intended.

Bush: That was definitely an art pun.

http://www.today.com/video/today/54864022#54864022

Edit: Grammar.