That is a bad-looking head rub on an otherwise handsome snake. My newest bp came to me with a big ol' bump on her nose that I attribute to the 1/2" mesh on the top of her enclosure, but I don't know for certain that's the cause. I do know that the humidity has kept the contact paper from sticking as well as I'd hoped it would and I'm going to need to find some other way to keep the humidity in and prevent future rubs, or maybe 4" cable ties to hold the contact paper in place.