Everybody going through security is hard of hearing and has some type of metal hip and/or knee... it's about a 2-hour process.
"Sir, do you have any metal on or in your body?"
"WHAT? I DON'T HAVE MY HEARING AIDS IN"
"METAL.. do you have any METAL in your BODY"
"RENTAL? Yes, I will need a rental when we land!"
That's why everybody drives.