Here is a classic you will encounter when driving ahead. For local drivers, it is very important to not leave a space between you and the car in front of you, and if someone needs to get in, close that gap even further so as make it impossible.
Note the black BMW is trying to turn into the car lot. The white car in front of me has pulled ahead, effectively blocking the BMW's path.
(sorry for the low quality photo, it's all Steve Jobs fault)