Shesh, That is funny.
I have also taken to wearing flip-flops while working in my cement floored darkroom. A couple of years ago I was given a pair of plastic Adidas sandals with thick, cushioned soles and a foot massaging texture molded in. They are a great alternative to anti-fatigue mats. They are comforable, cool, water (and chem) proof and wherever I go, even if I leave the room, they are always under my feet.