An elderly gentleman was reading his recovery-room record at the hospital where I work. He looked quite concerned at one notation.
"I know I was in a bit of a muddle, but I didn't realize I was that bad," he said to me apologetically. "I hope I didn't offend anyone."
He was greatly relieved when I explained the acronym in question meant "Short Of Breath" and not what he thought.
MORE WAYS TO LAUGH