This poor man had a very bad day, but then again, so did the other nine car owners.

92-year-old Russell Kerr smashed into nine cars while leaving the parking lot of a supermarket in Mayville, Wisconsin last week.

Reportedly, his foot got stuck on the gas pedal.

And according to thefw.com:

Kerr will not be cited and, since police do not have the authority to revoke licenses, he may legally be allowed to remain behind the wheel, depending on whether the DMV feels the need to re-test him after getting the results of the accident report.

I think that re-test might be in order. :-D