My little Grammastola Pulchripes sling has been digging his holes in the dirt for awhile. This is something I'm finding quite interesting, as it comes out from time to time, mostly just seeing what changes have happened outside of its hole. It's something I've grown accustomed to over the past 2 weeks of being a first-time owner. However, I happened to look over its containment, and to my astonishment, I can't really find the hole. I'm sure he's fine, but do Ts do this often? That is, hole up, then cover it, put dirt over the top to make the hole less visible? Does anyone else have any thoughts on this? Or should I actually start to worry?