I think Zac is fine with everyone else taking chances and being locked in places. Going so far as to lie to the other team members, "No I'm not locking the door." "We'll be right here if anything happens.
The other Ghost Hunters don't see half as much as Zac sees and he's been possessed more times than all the other Ghost Hunters combined! What a crock of you know what!
Grow up Zac. Wait! Maybe it's the ghost compelling him to be a weenie.
