"A friend of mine usually said that when you see two lines in the bank, one being much shorter than the other, you can bet the short one is the wrong line for you."

a bit OT but worth it nonetheless: my father always sas than whenever there is bureaucracy involved (i.e. the DMV, embassies, other government departments, etc.) one should choose the shortest line - it means that the clerk in place there is probably the most efficient and less inclined to play "power games" with you. Served me right on several occasions.