I recently had the misfortune to have to travel through Heathrow.
When asked to take my shoes off I asked for some to put on in most airports eg gatwick and paris they give you a pair of anysize plastic overshoes to wear while you walk through. Two years or so ago I am pretty sure I picked up a Planters wart Or verruca on my foot, the skin guy at the hospital I had it removed said that it was a very good chance that I had picked it up at heathrow as the timing was perfect.
Removing the planters wart was not a pleasant experience, more like a barbecue underneath you foot!
I did write to the airport at the time complaining about the lack of overshoes, and in the past two or so years they have done nothing.
This time I refused point blank to remove my shoes told them why, and eventually they let me sit down take my shoes off and they brought the shoes back to me.
Perhaps I was luck in that I had a reasonable person check me out.
The fact is that BAA have no interest in providing protection for individuals who they want to search. Foot protection is paramount for diabetics. This should be pointed out to BAA and BAA should do something about it. This they have singularly failed to do.
Hopefully they will provide overshoes or someone will take them to task. Myself I dont think they care and are not fit persons to run an airport, I shall take overshoes with me next time.
I dont want to lose a foot, because I am forced to walk again on a filthy floor.
Sorry for the rant but there doesnt appear that there is anything I can do.
best regards