I have had my bp for about 2 and a half months now, and he has never done this. I checked him multiple times for mites, and haven't seen anything. (though, I admit that this is my first bp and I am not an experienced mite hunter) The only thing that has changed in his vivarium is the foam background that I added. I made the background myself and the only thing I can think of is that when the non-toxic paint was drying on my porch, the wind blew it off the table it was on, and a mite jumped on from the ground. He also has not shed yet, and I was wondering if this could be some kind of pre-shed behavior. I lowered temps as I read they soak if they get too hot sometimes. If it is mites, then I will pick up PAM on the way home from work, and then throw out about $150 in decorations when I get home. Any suggestions?