Two signs/bumper stickers I hate

The first is the seemingly ever more onmipresent "Watch for Motorcycles" sign. Really?

Someone voluntarily takes to a road dominated by metal-caged vehicles on a dangerous vehicle without any impact protection and I'm supposed to "watch" for them? I'm willing to swallow that as a person, I have a duty to protect other people. That much I can understand. I would never willingly or intentionally go out of my way to hit a motorcyclist and I try to give them a wide area in which to operate. I'm aware of what my hitting them would do to them, and to me. I imagine you never get that image out of your head.

Having said that, I will begin "watching" for motorcycles when they stop riding down the shoulder in stalled traffic, riding down the center line in stalled - or moving - traffic, pulling wheelies while in highway traffic, jumping in and out of traffic on highways in excess of what must be 120 mph* and other fun stuff that, because they can do it on a bike, I should apparently "watch" for.

Hey you, yeah you in the small, unprotected, hard to see vehicle riding along dangerously on a road dominated by vehicles 200x your size: You may want to put the oneous of "watching" on yourself. Not to mention maybe not drive down the street at 1 a.m. revving your engine to top RPMs.

You have a bike; it is loud; you think you are cool; I get it.

The second isn't nearly as offensive: the "Children on board" signs. These seem to have waned in recent years. But honestly, what is that supposed to tell me? If I'm careering toward you, am I supposed to turn away because I see that sign? And do what, hit the guy next to you instead? Is that sign a "kill the other guy not me because I have kids" permission slip?

I suppose the idea is that if you see the sign you may back off a bit. I honestly find it hard to believe. That idiot tailgating you isn't likely to stop and drive more conservatively simply because of that sign. This is true mostly because tailgaters fall into two categories, in my experience:

1) teens who don't know better, are oblivious, or doing what teens do and acting teenagery and;
2) douchebags.

The inherent nature of each group means neither is likely to alter their behavior soon or based on a simple sign. Teen behavior you can change by waiting it out. Teens grow up.

It's generally too late to do anything about D-bags .

* all things I've witnessed with my own two eyes in my almost 20 years of driving.