Good news British subjects! If you are selected to go through a full body scanner at either Heathrow or Manchester airports you must submit or you don’t get to fly:
It is now compulsory for people selected for a scan to take part, or they will not be allowed to fly.
Previously if you were selected to go through a body scanner you could opt for a full body pat down instead. Personally I’d go that route, if somebody wants to see me naked I better be getting free drinks out of the deal.