Ebay Camping
You wait until the last second to bid on something you want, trying not to make it cost more than it's worth, but then you get the eBay jeebies and you go full retard.
I waited until the last second, then I bid $200 for a $10 keychain. I'm a monster.
I waited for the last second, then I paid $150 for a $10 lanyard. I'm a goddamn moron.
I waited for the last second, then I paid $200 for a $10 coupon. I'm an idiot.