i went thru memphis once (US wife, been to US maybe 25 times, Im an old hand at this stuff) and the finger print scanner decided to break at just the moment it was my turn. Much eye brow raising, retrying, examining my fingers under a magnifying glass, retrying, swabbing my fingers (shit scary as i might hve rolled the odd hashish joint in the preceding weeks) retrying, eventually sent to back room with some majorly sweating russians, chinese, and vietnamese rejects). 30 mins later called back, they'd fixed the scanner.
"So you doing any hunting over here while with your folks? " big cheezy grin.
I could have punched him.