For months "they" have been beating on "us" to "get with it" and "upgrade" our "primitive" Edison filament bulbs and replace them with the new "environmentally friendly" curly bulbs with high content of mercury.
"They" must know, don't they? After all "they" are SO MUCH SMARTER than "we" are, right?
They don't mention what happens if you step on one.
Don't click the link that follows without a strong stomach, but know that if you DO step on one, something like this happens.
Don't say you haven't been warned.