Does the door open in or out? The dog could have bumped the door closed. Anyway, I've had a door shut on me a couple times by themselves...who knows.
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )