Ian Millhiser, a blogger for ThinkProgress.org, describes an interesting incident during Gov. Rick Perry's Aug. 18, 2011 visit to Popover's on the Square in Portsmouth, NH:

“But you said Social Security is unconstitutional,” Mitchell repeated.

“I don’t think I — I’m sorry, you must have,” Perry said before stopping himself.

Instead of elaborating, Perry stuffed a generous piece of popover in his mouth. (Perry called them “pop ups.”)

“I’ve got a big mouthful,” Perry said and then ordering a glass of water.

See Ian Millhiser.  "Rick Perry Can’t Defend His Claim That Social Security Is Unconstitutional Because He’s ‘Got A Big Mouthful’,"  ThinkProgress.org.  Aug. 18, 2011.