My GF recently had 5 screwdrivers PHX-DTW. She wasn't hammered.
Do some flight attendants in FC put only half a bottle of liquor in the drinks?
My GF insists that the drinks were not strong, and on those small glasses, they should be fairly potent if the full bottle was used.
I'm a Woodford or Gin n Tonic guy myself. And some Coke Zero.