Or is it the airlines' new tactic for keeping folks in their seats . . .

This from a Denver pal who vacationed over the holidays in a chilly Florida climate:

"I flew out of Panama City today, on a plane that had come from Atlanta and was returning there. It had been 18 degrees. When we got in the air, the flight attendant said, 'Now that we are at cruising altitude you may use the restroom. But the cold in Atlanta froze the toilet and it doesn't flush. You are welcome to use the toilet and we can try to get it down.'

"It??????"