My friend the trucker had a flat on his trailer one day. I happened to be in the shop helping him with something. Went to bead up the tire and we use a rubber ring looks like a bike tire tube. works good and I am standing against the tire as it fills after bead is on. Tested pressure, 65lbs. hook it back up and just standing there keeping the tire from rolling away or falling over. BOOM I'm thrown back about 3-4 ft onto the snow blower(just bruised and scratched) The tire blew on the opposite side of me. Cleared at least 8ft of shelf off and blew a paint can into the 4 inch wall that had 1/2 inch plywood on inside and tin on outside. Plywood had a hole in it and pushed the tin on the outside out about an inch. Not sure how bad it would have been if the tire blew on my side but may have been a lot worse. The tire had rubbed a bit on the other tire when it was flat but the scuff mark looked very minor. I know better than to fill a tire that has been run a bit flat now. If I am not sure I lay it down outside and make sure I'm far enough away or behind something that if the tire flies it won't get me.