18. Damage a saguaro
Whether you know them as saguaros or those giant cacti, they have a lot of rights here in Arizona -- maybe even more than you do. Don’t mess with them unless you're looking to add a "felon" to your resume.
19. Walk across someone's rock lawn
Here in Phoenix we choose not to put a lot of effort into our front yards (or use a lot of water, obviously), so please don’t force us to rake the yard by stomping your way through our rock lawn.
20. Turn the clocks back
If you are from anywhere else in the US this might come as a shock, but daylight savings time isn't a thing here, so keep your clocks where they're at all year long -- otherwise you'll just confuse everyone. We can’t have that.