Dude, when the shtf all social and moral codes will be null and worthless. Join the countless people who will be going cannibal and as long as you live near a city food will literally be running rampant in the streets... Think about it.

Or if you feel the need to keep your morality buy a vac packer and ditch the cans.

The choice is yours!

Hahaha man was that some messed up advice. (Disclaimer: I am totally joking)