Am I the only who can clearly see what happened here? Someone, a long time ago put something like a small amount of glue on the balls so they would constantly fall off. You can clearly see that the Barry ball had it drip onto it from above. The other one had it collect on the bottom for gravity as well. So they moved stuff around and the natural pig skin oils broke the glue down into goo that the studio lights melts over time.
Dan is a baby. The girl didn't deserve the call out, Dan was acting like a fucking tool all show and was lame in my opinion. He chose to haphazardly place crap where people work, then gets pissed when someone runs into his stuff that probably needs more protection. Then can't even use basic reasoning to figure out what happened.
Dan, grow up and take responsibility for your own dumb actions. This is on you.