1. People who park their shopping carts in the middle of the aisle. No trip to Walmart is complete without encountering several these geniuses. Apparently they are unaware of the fact that other people don't want to wait for them while they ponder their grocery buying decisions. The best part is when you say, "Ahem....excuse me." they look at you as though they are truly surprised to see another person in the store. If you know someone who is guilty of this I am including a helpful diagram to aid you in pointing out their mistakes.

