Last night while I had out one of my male chins he had been running around on the couch I was sitting on it as well. he came over to me and scooted his behind up and down my leg. I know dogs do this when their anal sacs need emptied (marking their territory) in the case of my chin is he doing the same thing? this is the first time he has done this. I just don't get why he would mark me when hes more bonded to my husband. Just curious as to why he did this and if it needs checked out by a vet.