Stubborn seems to suit my chameleon perfectly. She wouldn't dig at all in her cage...Maybe try getting a 32 gallon trashcan (you can get them at Wal-mart for like 12 bucks) and putting whatever medium you like in it. I used about a foot of damp sand (she wouldn't bother with anything else). Put a stick and some kind of plant like a pothos or something in there as well. I just left the lid off and put her UV light across the opening, and mounted her basking light so that she could climb the stick to bask and left her alone. I put her in one night before she went to bed, she fell asleep on the branch and when I turned the lights on in the morning, she warmed up and started digging immediately...14 hours of goodness. If you wait for a while (once she actually starts to dig), you can turn the basking light off that way it doesn't get too warm and dry the medium out along with further dehydrating her. Just make sure you don't look in all of the time, it spooks them...mine didn't mind too much, but I waited until her body was inside of her hole before I took pictures or anything. Hope this helps...or at least gives you a different approach.