[ChibiLuv]

Problems with my angel baby Chibi are few and far between but boy do we have a doozy! So for I dunno how long Chibi gets super excited/ angry at door knocking and doorbell ringing. Weird side note- we've never even had a doorbell, he hears them on TV and goes crazy. Anyhow, it's not been that much of an issue until lately. In the last month he has bit DH twice on the leg! One time he left a pretty good bite mark and it bruised. We have a gate in front of our door to prevent escapees and as DH steps over the gate Chibi goes for him. He hasn't done it to me but I usually don't answer the door. What is the best training things I can teach him here? I dunno why the door upsets him so, I've had him since a pup and he's never been traumatized by visitors. This problems seems to be escalating quickly so I want to nip it in the butt. Any thoughts/suggestions would be appreciated.