Aspen has this annoying habit of sniffing dogs that he knows non-stop if they are over at our house. Bums are not off limits either. He will seriously obsessively lick or sniff, and if he does listen to our leave it command, he stands a distance away from the dog and whines. When the other dogs are settled, Aspen is antsy with wanting to lick and sniff everyone. It has started to become really frustrating because some dogs really don't like their personal space to be invaded. I understand that sniffing bits is a way to communicate, but Aspen does it obsessively and sometimes won't listen when we tell him "leave it". Do you think this is behavior from being intact? We've never come across a dog in season, so I don't know how he would react. Either way, he's on a leash or in the yard so an accident (on the road or getting a dog pregnant) is not likely.