9. Having The Driest Mouth In The World After A Ten Hour Shift
You're constantly talking during a shift as you have so many customers to greet, so many transactions to process and you ask the same questions over and over again. "Hello, how are you today? Are you paying for this on your Debenhams store card? Would you like to keep any of the hangers? Would you like a bag? Would you like the receipt in the bag?" Water. You need water, or something stronger.