My father told me this one...
On a trip that ran up the California coast and back they had a FA that came up to the cockpit to take a break and get away from the PAX for a minute. They struck up a conversation about how pretty the coast was. She asked what body of water they were looking at. After a second or two he realized she wasn't kidding and told her that it was the Pacific Ocean...

. My dad and the FO had a chuckle about that after she left.
Aparently on the return trip, she came back up and then asked them what body of water was that on the other side of the airplane.
I dont know if he was just stringing a yarn...but I had to laugh.