I thought this picture would be good to look at.
I took this at Suscon in Dallas a few weeks ago. The explanation I got about these little bumps was that the weight of the individual, around 240lbs, and that they were 4g hooks, forced the moisture in his skin to be forced to the surface. They formed while he was in the air. They didn't pop and nobody should pop them, but I just think this is a cool picture that shows something that does not happen too often.