This is some dashcam footage from Cape Coral, Florida of a driver who apparently has no clue how to change lanes, and almost sideswipes an unmarked police car trying to. Where'd you go to driving school, Clown College? At least they used their blinker. Still, this is just pathetic all around and I wouldn't accept a ride to the mall with this person if they were the last driver on earth and it's 1991 and the arcade in the food court just got Street Fighter II.
Keep going for the whole video.
Thanks to Luc, who agrees somebody needs to go back to merging school.