I try to stay calm but find it very difficult. Knowing that people are going to do these things doesn't make it any easier. This morning at a 4 way stop I signaled left turn when it was my turn and proceeded through the intersection. Goofball decides to go straight through (me) anyway. I can rationalize from his POV that he had more time if he just sped through endangering more people in more ways. So I changed my hand signal into a pointed finger right at him. He gives me one of those shrugs like he really doesn't give damn. I wanted to rearrange his teeth. But the real kicker that makes me most sympathetic with the shotgun in the poll was that he had a bike rack on his roof.