There are many things you want to be especially careful doing in this world. One of them is filling up tires with air.
This dude found this out the hard way. Not only does he not seem to have an air pressure gauge handy, he is basically sitting right on top of the damn thing.
It seems something starts to go wrong when the dude in the white shirt runs over to help the dude on top of the tire. Then in a flash, the tire explodes and the man is launched straight up into the air and is never seen again.