i thought i had my heat lamp pretty well clamped on to were i wanted it....turns out i didn't....i changed a reg bulb to heat bulb a few days ago due to incomming weather....every thing was fine at 7:30 am when i went to left them out.....dd went to check on the flock around 11:30 and found a 5 inch whole in the floor with shaving's it still smodering....3 of my BR hens got singed on there tails but seem to be ok.