Seems like every time I go through FLL there is at least one TSA agent yelling instructions. In particular, there is one short guy with white hair and a high pitched, and usually hoarse, voice screaming the same instructions over and over (including keeping out the boarding pass) as loudly as he can scream. One time he was yelling something about suspicious looking luggage will be flagged for extra screening along with the owner. My black roll on has a couple of small stripes of white cloth tape on the top to make it easier to identify. He starting yelling about the bag when I put it on the conveyor to the x-ray machine and demanded that it and me receive extra screening. When I stepped through to the other side and picked up my bag, the agent told me to just go on my way. It was then I noticed most of the other TSA agents were watching and laughing at his antics.