What happens when you get in what you think is the shortest line at the grocery store, but it turns out to take the longest, usually because the person ahead of you needs a price check, or wants to chat to the cashier.
You: "I think this line is going to take the least time"
Your shopping buddy: "No, man, this one is shorter"
ten minutes later:
You: "Dude, we have been faux queued."