I do it all the time. Actually, 5 days a week, I cook in a restraunt. its 120 degrees standing in front of the grill. And I stand there hours at a time wearing pants the whole time. Ive also done lanscaping, all day long, in the heat, wearing pants.
Sure its not as comfortable as shorts, but you can do it, trust me. Discomfort and pain is all in your mind. It only bothers you if you let it.
To the original poster, my boots will keep me from burning myself on my T5s even without pants. So either buy yourself some boots, or start wearing pants.