We've all heard that truism and if you have children of your own or even if you've only been exposed to the little walking info-vacs for brief, one or two hour periods, you know just how easily they can assimilate and regurgitate information you'd rather they didn't. Letting an errant expletive slip from your lips in their presence and than trying to unring that bell is tantamount to the old toothpaste back in the tube cliché.

