When do YOU start looting.

[Tezauzz]

I think if the scenario is dragging on more than a few days then there is a serious issue and thoughts towards replenishing your supplies is vital. A lot of people will have the same idea however they won't be as prepped as those who are already prepped. What I mean is they'll smash and grab for creature comforts they know, not things that will last or provide nutrition. Cans to the 'sheeple' (seen that term on this site and love it) are too much hassle.
Repercussions at this level you could expect to avoid in the instance of food and necessary supplies. If you're one of the stupid looting Currys for plasma tv's then that's different.

My 2p