Nebo is not supposed to go in the room where the front door is. He knows the boundary quite well, so normally he'll wait at the edge of the room and just wag his tail. He doesn't normally get super excited, and he NEVER barks when the door rings....but he does always have to go upstairs to check it out.

Reggie and Sydney are a different story. UGH. Both run right up the door barking like mad and usually try to bolt out the door (especially Reggie). Luckily both of them are good about coming back inside (Nebo would take off down the street if he bolted out the front door).