Maybe it is something in the air, I was driving down our main street today and a kid on a motorcycle was birddogging the people he was following, weaving in and out of traffic, and generally being an idiot....he nearly ran a little old lady tooling along under speed off the road. I came up beside him (he couldn't get very far very fast, despite his efforts...traffic was heavy) and mouthed, "Knock it off..." and shook my head and gave him the mom frown. He proceeded to then birddog ME...which irritated me to no end...so I did what I have only done once before...I flipped open my badge and ID and held it out the window. That shut him up, and he drove like a human being, at least until I turned off. I hate doing that, when I am off duty I am off duty (I am not one of those gun toting everywhere cops), but this kid was dangerous. And, since only a month ago we sent a kid and his limb to the hospital in two different ambulances after he collided with a minivan, I might have been (at least temporarily) saving him from himself (and those around him from him).
Motorcyclists can be the most courteous on the road, and the most dangerous.