Why won't tail lights turn off when I turn my car off 1996 acura tl?

possible faulty brake light switch...sticking....usually located on top of metal arm connecting to your brake pedal. $10 part. There's a rubber bumper that the brake pedal switch hits against to turn off. When the bumper gets old it falls off (you will notice the pieces on the floor when you get in). Without the bumper in place the switch post just goes through the hole that the bumper is supposed to be in and is never depressed and the brake lights don't shut off.