When you've been a waiter so long that you inhale every meal you eat, unable to slow down and enjoy the food. This is typically due to repeatedly not getting breaks on long shifts, and having to scoff down a meal in-between tables.
"Ryan, why are you inhaling your burger?"
"I have waiter's syndrome!"
When you're taking a bath and decide to pump one out in the tub.
"Man, last night was so relaxing. I had a bathtub circus before bed.