I used to fill it with beer on my assistant manager shift

Corporate Guy who would come in the place like once a year saw it one day and threw a fit.

I said "What does it matter if the customers can't see me?"

Corporate Guy said "Are you serious?!"

I said "Yeah, us assistant managers don't kid!"

Corporate Guy said, "WHOA, we also have sophisticated machinery back here that you shouldn't operate while drinking alcohol!"

I said "I have been handling this ketchup hose gun shooter thing for weeks while using my assistant manager mug with NO PROBLEMS! Makes this job bearable!" (I might have been feeling the effects of the alcohol with this very last comment) 

Corporate Guy said "Weeks?!" and I said "Yeah, maybe even months!" 

Then they fired me.

I heard they then confiscated all the assistant manager mugs. The assistant managers had to drink out of these cheap Ronald McDonald dixie cups after that. 

Also they removed my name from the September line on the 1994 Employee of the Month plaque. That September 1994 month was then just left blank and it looked weird like no employee was good that month. 

One day I will tell you about the day the Hamburglar and Grimace came out for a "meet and greet". Some people think it was an urban legend but I saw what happened.