Look, it would be rude if I led the way, because then I'd have to open your door, which is kind of weird if it isn't my room.

[John sits down on the floor, cross-legged, continuing to chatter away, temporarily oblivious to Dave's plight.]

Plus, I don't know if you lock your door or not! It would be really awkward if I started trying to open your locked door, and then the door knob wouldn't budge so I'd have to wait for you to get your key out...

[Okay, now it's processing that Dave is face-down on his bed making a sound like he's dying. That's a bit weird.]

...Hey, are you okay, Dave?