Some years ago the pilot of a medium sized green helicopter was waiting for the assembled pax to finish boarding, including a certain Mrs. Thatcher. All done, the crewman went outside on long lead i/com for the start.
The pilot suddenly announced in a Glasgow accent: "Is Mrs. T. on intercom"?
"No, she's not", came the reply.
"In that case it's alright if I talk about my effin' piles then!"
"******, You haven't started any engines yet, I heard that out here without the intercom!"
Cockpit heater not required on that trip!