R & M Trucking

On Tuesday 09/24/13 at 12:30 p.m. proceeding east on Irving Park Rd an R&M Truck driver was extremely rude & discourteous by switching abruptly from the right to the left lane...no signal. Had to make a very hard stop, resulting in loose objects in car flying to the floor. He was a real jerk when I communicated what he had done. Got the finger, smirking, "f" bomb, cocky attitude, & blew a few sarcastic kisses...I'm a male. A few apologetic gestures would have been welcomed!