I currently have three power supplies in use in the shack and all of them sit on the floor. There's nothing even close to the terminals. Now if you keep the PS on your desk/bench you have to be a little more watchful.
BTW, I was in your fair city last summer (for the second time) and the train ride from Anchorage to Fairbanks was fantastic. Of course it was beat by the flight back across the peaks of Denali.