1.  You're in Florida.  Consider the source.  Your fellow Floridans (sp?) haven't exactly distinguished themselves in the brain department recently.  I know where I'm NOT moving.  (Apologies to Floirda listmembers, however.)

2.  Don't key vehicles.   

3.  Once in Spokane, WA I was filling up with gas and a Caravan owner rather excitedly demanded to know what my gas mileage was.  I told him; he then bragged how he got at least 26mpg.  I finished getting gas, paid my bill, and ignored him.