There is a game that the locals play, although I sense that it's not by choice: Dodge The Desert Cottontail. Here's how it works: the rabbits will dart out of the roadside shrubbery and bramble just as a car approaches. The car is then obliged to do one of two things: 1) Run over the cute little bunny, or 2) Swerve.
It's all very sad. Paranoid swerving isn't what a lot of people had in mind when retiring to the desert, and as my wife points out, "bunnies are cute".
I didn't learn if this applied to golf carts, too, but I'll look into that and report more info. later.
One of the salesreps with my company had his wallet with $500 in cash stolen from his room. Okay, I don't know why anyone would leave something like this in their room, but you would expect better security from a high-class Marriott resort like this one.
When you are in Arizona, you will see some cute pretty cacti... you might brush against them. Be very very careful because that pretty cactus has barbs, that can get caught on your hands/legs, and imbed into your skin. The hooks are like porcupine quills, fish hooks, any of those nasty barbs that get in and don't come out without a lot of pain and chance of infection.
Its get excruciatingly hot in the summertime. They say that the very-low humidity levels helps alleviate some discomfort, which is true when its not summertime. But in the summer, when temperatures are 110 (F) in the early morning, you can feel every degree of it! However, in the off season it can be very mild at night.
Other than TOURIST TRAP WARNINGS I have already given, don't drive far out or go walking alone in the desert, particularly during summer. ALWAYS carry some water.
Tourists have died getting lost in the desert without water when hiking or when their car broke down.