"Doritos - Crash the Super Bowl - Crumbs"
This ad features a man sitting on a park bench reading and eating Doritos. He crunches on a chip as a female jogger runs by. She hears the crunch, turns around, and licks the crumbs and cheese from his face. The next day he gets and idea. He crunches a chip again and when she turns around she sees a big pile of crumbs on his lap. She looks like she's going to do just as he planned, but then a large man turns around and beats her to it.