Ah! Like Nigel Graham, my swarf gets squashed down into clean empty tins, and the lid is then bashed on, before putting into the recycling bin, ready to be picked off by the magnet at the recycling centre.
Sadly, I have stirred non drip paint, without any apparent ill effects. (After all, I want it to run when I brush it on. As long as it covers and dries, contentment follows.) Ignorance IS bliss
Howard