Because phones don't get lost or stolen, ever…
Not mine.
Over the years I have developed a set of cardinal rules regarding iPhones. They can be applied to any smartphone... but since myself and a lot of my friends are Apple fans... I call them my iPhone Cardinal Rules. It is very simple. Following them has caused me to never lose or misplace an iPhone.
Cardinal Rule #1.
If your iPhone isn't in your hand, it's in your pocket.
Cardinal Rule #2.
If your iPhone isn't in your pocket it's in your hand.
There are only 2 exceptions to Cardinal Rule #2.
#1 Exception:
If you are home, your iPhone can be left at your charge/sync area to charge or sync if that is consistently the same place you charge/sync. Don't constantly move your charger around your house.
#2 Exception:
If you have a docking station for your iPhone in your vehicle, you may dock it there while driving, but under no circumstances are you to leave your vehicle unless you execute Cardinal Rule #1 or #2.
I recite these rules to friends who leave their phones on the table while enjoying a meal at the restaurant. By doing this, you are just asking for a drink to spill on your phone or to just forget it when you pay your bill and leave.
Another one for guys is leaving it on the top of a urinal toilet while going to the bathroom. Why not just stick it in your pocket while you take a pee?