I hate tar snakes! Anything else that comes off an idiots cage for that matter. But big rigs are the worst. I caught a lit cigarette once in my lap from a car. Rolled up alongside the moron and said "No thanks, I don't smoke". And threw it back at him. We were doing 35-40 mph. It missed his head and went into his back seat. I don't even think he noticed it! I've had friends go down from everything from a flattened gas cap to to a 4"bolt. It's dangerous out there. You have to keep looking out.