I have absolutely no idea about any of them tbh.

I will go with:

1. Don't keep food next to a fish as it will smell fishy or maybe be careful were you keep stuff?
2. Something about if you set things up right bad things wont happen as in slate roofs don't leak
3. Its better to be packed as you can walk (as in maybe quit a job?) but if your sacked you have to go where your placed?

Fun game anyway can't wait to see the answers!