I'll have what she's having

I often wonder why we always want what we don't have or rather, what the people next door are having? Take a simple example. Standing in a toll queue, I always think the queue next to me is shorter and when I'm certain my queue hasn't moved in like hours, make a quick beeline for the one next door.

And what do we have there...? Another queue that doesn't seem to move for like hours, while the one I have just left seems to be sailing ahead smoothly!

Moral: Stick to your own shit.