Many of the banks in Italy, especially Rome, have secure entrances that look like Jetsons-style transport tubes. You step through a doorway into a narrow Plexiglas-walled vertical tube. If you weigh over 300 pounds, you're probably not going to fit. Once inside, the curved doorway behind you slides shut with a hiss and a click. You're now completely surrounded by Plexiglas. Some unseen machine hums and bombards you with god-knows-what type of radiation, and if you pass muster, a light turns green, you press a button, and the second door opens, allowing you into the bank. If you flunk the test (perhaps because you're carrying an unusually large pocketbook, as my wife discovered), a light turns red, you press a button, the exterior door opens again, a disembodied voice chastises you in Italian, directing you to a set of lockers in which you can store your pocketbook while visiting the bank.
An elderly female American tourist on our trip ran into some serious problems at one of these banks. Apparently, she had a small handbag containing a small knife which was detected during the security scan. Not understanding the chastising voice, and not knowing to push the button when the red light came on, the poor octogenarian was trapped inside the glass, yelling frantically and banging on the walls of the tube with her fists for several minutes while the bank security officials alternated between laughing and shouting instructions in Italian through the Plexiglas walls. She made it out, but resolved not to go into any more Italian banks unless they featured a normal door.