A McDonald's employee registered a complaint by sending an e-mail to the Lansing State Journal newspaper.
The e-mail said:
"Over the past couple of days something has developed that has me more than a little concerned.
Our specialty coffee machine (which makes the hot mochas, lattes and cappuccinos) has been working on and off for they past couple of weeks and started to smell of something I can only describe as ungodly."
It was determined that the coffee maker’s sporadic performance was due to the fact that maggots were growing in the mechanism of the coffee maker.
The machine was shut down right away and cleaned but maggots continued to grow inside the coffee machine.
More here.