Gotta love the big red "NO!" on em'.

But nothing can beat Stick Figure Warning Man.

Although you might be able to pull off panopticon, you might consider calling it a panoply instead. Trove works too.

Although I do appreciate the Dr Who reference (along w/ the other meanings).

I should lawyer up and sue my parents... they never taught me it was dangerous to listen to the radio while I'm doing the dishes.

My favorite is the "No Guitar Hero for you!" toddler:

http://consumerist.com/photogallery/products/1847643

Warnings:

Trampolines may cause your hair to catch fire.

Keep gigantic lighters away from children.

Do NOT wear daisy-dukes on stationary bikes.

Your All Terrain Vehicle is designed exclusively for use on surfaces that do not require turning.

Your baby is supposed to sit in its stroller, not hang by its neck through the leg opening.

you'll never get my lawn darts, CPSC. they're mine, ALL MINE!

@The Nature Boy: I feel horrible but I can't stop laughing uncontrollably at that image.

@mac-phisto: When my husband was a kid, he knew someone who got one of the darts stuck in his skull (not all the way through; just lodged in the bone enough to stick). Even having witnessed that, he still thinks that the disappearance of lawn darts is absurd. I'm inclined to agree.

Why the pic of the "Discover" card? High intrest rate warning?

This is the first thing I am passing out when I start my nerd bike gang.

Sure, drawstrings are deadly, but a giant pair of scissors following your kid down the slide is totally OK.

@heathalouise

That's the funniest thing I've heard in a long time.

I'm just not sure why.

wait! i know how this is going to end!

@madktdisease: In a 404? Or did you mean this?