how long

[sdmc530]

Been thinking about this....maybe I am off but could you use an old fridge to store powder? Not plugged in or running obviously but a fridge is pretty well insulated would take some time for fire to get into it and would "open" if gas was built up. Why couln't I use say an old dorm fridge to store my powder? Or am I way off on this?
Primers not sure what to do with them. the problem I have is a little one in the house and keeping his little hands off stuff.
the wooden box deal is a great idea but would need two of them of course and have to lock the thing, that kind of defets the idea of a forgiving box?
Maybe I am just overthinking this?