When the machine shuts off......
Rude. Cut people some slack-they could be on their way or something could have delayed them. That's like sitting down at a restaurant table before the other party finishes getting up.
5-10 minutes, then move it. Being a little courteous won't hurt you and may make a situation less confrontational. There's so much talk on here about lack of common sense, respect, etc., yet taking someone's laundry out immediately is being very pushy. Yes, common sense dictates you should probably wait for your laundry rather than leave, but common sense also dictates that not everything in life goes as planned. Lighten up. It's LAUNDRY.