Thanks for the welcome, we both keep our mixes/fill up bottles in metal cash boxes as my mate has two kids, and I see my nephew, and nieces every couple of days, so as not hurt the kids. So far the weirdest thing to happen to me was I kept tasting mint, so I thought, it has to be left on plastic tip, I think it's called the dripper, so gave it a good clean and hey presto, but boy it that mint strong.