Those salacious seniors are up to their old people tricks again Wednesday (May 2) on NBC’s “Betty White’s Off Their Rockers,” and this time the clothes are coming off — and revealing old lady undergarments.

In the sneak-peek clip above, two nuns try an innovative approach to raising money for breast awareness. And for only $1, donors become very aware of breasts indeed.  

Also on deck this week: A man decides to make his own alterations on a shirt he likes in a store, and an old man escapes blame for insulting a security guard. Also, one prankster enlists a friendly stranger to help secure his car — with tape, and another helps himself to someone else’s meal at a restaurant.

“Betty White’s Off Their Rockers” airs Wednesday at 8 p.m. on NBC.