Ebay Camping
You wait until the last minute to bid on something you want, hoping no one else is insane enough to raise the price, but then you get the eBay jeebies and you become the insane one.
I waited until the last minute, then I bid $100 for a $10 sock. I'm a total idiot.
I waited until the last minute, then I bid $150 for a $10 lamp. I'm a goddamn fool.
I waited until the last minute, then I bid $200 for a $10 pen. I'm a complete loser.