Possibly the DUMBEST street sign ever!!!

There's a sign here in Portland before you go across one of the steel grated bridges that depicts a motorcycle crashing but you don't get to see the sign until it's too late and you're damn near already on the bridge and nowhere to turn around....
The steel grates make Yer bike kinda Wobble, a Lil. If Ya don't know to expect it, or have a flake passenger, it can screw You