That's funny, Alf. Reminds me of a true story that happened years ago while I was a Military Policeman guarding prisoners in a hospital ward at Fort Dix, New Jersey. (cushy job)
A very pretty lieutenant female Army nurse came into the prison ward and asked a guy who was going through heroin withdrawal if he had any pain anywhere. In his southern drawl, he replied, "Yeah, my balls ache."
She took a look at his privates and said everything seemed to look OK; only then did he correct her and say, "Not my "balls".....it's my BALLS (southern pronunciation for "bowels.)"
You seldom see a nurse blush, but she sure did.