Damn, he wasn't expecting that. Jim braces his body against the door, feet planted firmly against the floor to get maximum leverage. He starts to lift the phaser to weld the lock shut... but this is Hermione's door. He can't do that. It's not his right.

"Think you'd better hurry," he calls to her instead, not really able to devote the time to focus on what she's doing. Whatever's on the other side of this door really wants to get through, and it's taking a lot of effort to hold it at bay.