On Sat, 19 Nov 2016 01:33:48 -0500, Mike Duffy wrote:

My favorite 'nanny' warning from childhood was on a package of sodium
hypochlorite pool conditioner: 'Do not mix with brake fluid'.

Who would ever get the idea to make such a mixture otherwise?

PS: Make sure you are outside if you want to try this. It would also be a
good idea to put on safety goggles as well. And be patient. When the smoke
starts, don't attempt to speed things up by adding more of anything.

Here, in California, we are so inundated with such silly nanny warnings that
we become inured to them.

It's a big business just selling the signs, for heaven's sake!
https://www.google.com/search?q=cali...rning+stickers