That's quite interesting.
I've only heard of the one wolf "pet" here in BC. It was a male(I think), which is why old Less H. HAWKES (my friend since 1972) was asked to come shoot it. Could have just been a protective female, though, come to actually think about it. The parents couldn't even scold their "boys" or be met with a face full of teeth and growls.
They finally had enough, enter Les. Come to this of it, a male wolf likely wouldn't have cared about the boys.