I feel sorry for any passenger who has to encounter me when i'm tired... My last flight i managed to hit a poor unsuspecting pax on the head with a bottle of water and then half an hour later hit another pax with a bottle of orange juice on the arm. I wish i could have been able to blame turbluence of my clumsyness!
Both pax where very understanding after i had apologised a hundred times. Some days I'm glad i have a mob of blonde hair to hide behind!