Local driver topped off his Camaro with gas, and found his credit card had been charged $81 Billion.  That'd be a shock to the system.

http://www.tri-cityherald.com/kennewick_pasco_richland/story/491472.html

My favorite quote, regarding customer service at his debit card company..

"Somebody from a foreign country who spoke in broken English argued with me for 10 to 15 minutes," Zamora said. " 'Did you get the gas?' he asked. Like I had to prove that I didn't pump $81,400,836,908 in gas!"