Earlier quoted context omitted.
Yes I asked if I could get a pat down instead of the backscatter x-ray at Heathrow. Was made to feel like a criminal, questioned etc and put under pressure. And then to be told I don't have to get scanned but I can't get on my flight unless I do. There wasn't even an opt out.
I guess they were also very surprised, because most people would rather not be touched by a stranger.
It's also a crapshoot - you may have an aggressive officer, or a friendly one. I've been patted down twice for absolutely no reason; not a second screening, the guy just went over me two times.
I keep wondering why we have chosen to sacrifice freedom for some small measure of security. More importantly, I don't really believe airport security stops much - it's security theater.