Mustard Gas?

So the bug bites me and I get up to go work out and get to the workout room and it looks like a post-nuclear fallout area. The entire room is covered in this yellow dust and one of the light fixtures has dropped to the floor. I walk around and try to figure out what it is. There is a familiar smell and I debate whether I should just ignore it and work out or leave. There are three sets of footprints on the floor. So I become an Agatha Christie Poirot-esque character and discover that three kids have come in, because the outer door is not locked as it should be, broken the glass to the fire extinguisher and gone to town with it all over the room. And I do mean ALL over the room. They then decided to have fun with it and put their footprints in it. Idiots. I come back when the office opens and tell the person there who is horrified and shocked and calls the cops. I leave. LOL. So there goes THAT workout area...although, truth be told, I hate that rodentious wheel of a treadmill. So what now....