Todd,

You're right of course, resorting to savaging in homes would be the highest risk and therefore an absolute last resort.

I guess a problem with discussing this is actually trying to picture a situation we'd find ourselves in where, in an urban environment, we'd actually have to forage for food to survive off of.

I'm trying to image a scenario where I'd actually resort to picking dandelions to survive. I'd assume that I'd have to be in a position to understand I'd be without help for more than you'd normally be prepared for (i.e., this is a highly unlikely scenario I've found myself in).

It would also have to be something that didn't occur while at home, but where I couldn't expect to be able to make it to any sort of friendly location within many days.

You're likely right that something like Katrina wouldn't fit this criteria; so were likely talking about something more catastrophic; maybe like that asteroid mini-series just on TV .

So maybe we should step back and first ask in what situation would we find ourselves where we would have to start grazing through the landscaping plants?