We go into the dumpster. If we were to ask the store for permission or if they'd give us what they'd throw away they'd more than likely put a pad lock on the dumpster (a Trader Joe's not too far away has a locked dumpster). I have special shoes I wear that I leave at the door when we get home and I change clothes as quickly as I can.
Are you concerned about the food or the packaging itself?
I'm mostly concerned about packaging, but if it's sealed completely then I suppose there isn't much to worry about. I'm assuming you have some sort of dumpster diving outfit. Does the smell from the dumpster stick to the food or your clothing and what do you do about it?
Yeah we check thoroughly to make sure it's all securely sealed. Not necessarily an outfit but more so clothes I intend to wash right away. From what I've noticed the food hasn't smelled of dumpster at all.