From a newspaper item about a report on electronic cigarettes.

"The report calls for tougher regulation and measures including a ban on the sale of the electrical devices to minors, warning they pose a "serious threat" to foetuses and youths."

Babies and toddlers are OK to carry on using them then.

I'd think that amniotic fluid would either extinguish them or short-circuit them, so how's a foetus going to smoke one? Seriously, though, I suspect that the life-long asthma and attention deficit disorder with which I'm afflicted can be attributed to my mother's being a very heavy smoker. Thanks, Mom.