Same thing happens when they open a new checkout at the store or a bank teller window. I say, at that point, it's a free for all.
How about this one? Long line at the movie theater -- you drop the family off at the end of the line and park the car. By the time you get there, they've moved way up in the line and you join them. Is this OK? Or is it Louisville Slugger time?
Depends. Are yall going to pay together or is each one buying their own ticket? It really irritates me when I get behind one person and then the entire family starts showing up. It wouldn't be a problem if they were shopping together but they aren't. Sometimes, I end up with 5 or 6 people ahead of me when I thought there was only one.