ok, my four pd's have been outside. two are tame, two are not so much. I brought one in for 3 days, then returned it back with the others outside. Same with my male. Here's the thing, while outside, the two scared ones are wild, barely come out of their burrows, let you only pet their heads then retreat, try to nip when sticking their heads out. As soon as I put them back in the cage in the house, one at a time, they are instantly calm and loving. even yahoo at us. i'm still working on being able to hold them without getting skidish. I find this very strange. The other tame ones that are outside are totally all over us, yahoo and they have never been in the house. Other than it being their environment or insticts , I don't know what to think as to the drastic change