Here are some situations that immediately spring to mind:
1. Driving down the freeway and a mile up ahead, the Highway Patrol has pulled someone over. Other drivers in front of me see the flashing red and blue lights and immediately start braking and slowing up all the following traffic. First of all, if you need to be rubbernecking, do it somewhere other than on the freeway. Second of all, the Highway Patrol officer is not going to break away from his current traffic stop because you were speeding by. He is already attending to a speeder and he is not paying attention to you, genius.
2. Merging onto the freeway and the car nearest your merge point will not move over to the open left lane to let you onto the freeway and he/she also won’t speed up or slow down to accomodate you because he/she is just plain inconsiderate or possibly brain dead.
3. You’re in the intersection, waiting to make a left turn and the light signal changes yellow so you are ready to complete your turn. Someone coming from the opposite direction, who is still 50 yards from the intersection, thinks he can beat that yellow light before it turns red so he guns the engine and totally disregards your safety and every traffic law ever written and misses you by inches as you miraculously stop short of becoming another traffic accident statistic.
4. I just love the occasional rocket scientist that drives with his/her high beam headlights on at night and won’t turn them down when you signal to them with a flash of your own high beams. That’s just rude isn’t it?
5. Driving down the road toward an intersection and all of a sudden, the person in the left turn lane decides they no longer want to turn left. Instead of looking over their shoulder or in the rear view mirror perhaps, they just pull toward the right cutting you off completely and threatening to create a gnarly collision as they merrily continue down the road without a care in the world.
There’s many more incidents I’m sure but those listed above are more than enough to understand my neverending displeasure with ‘those that are too stupid to operate a motor vehicle.’