Interns disgruntled by their bosses is nothing new. But what this angry intern left for his boss as a parting note, was not in good taste, literally.

Source: Source: NDTV

In this epic last note, the intern took his revenge twice in one go. First, he admitted to adding a rather undesirable ingredient to his boss' coffee — his very own home-manufactured spit. After that, he let the note out into the world wide web. And, of course, it went viral on the internet.

The tirade goes something like this:

Source: Source: NDTV

"By the time you read this, I'll be long gone from this s***hole. I hope you enjoyed bossing me around. I bet you felt real good about yourself. Well I wonder how you feel now knowing I spat in your coffee every day."

Redditor Win_in_Roam posted the picture of the note with the message: "We sent out our intern to buy sticky notes. He's not a very bright kid." The post went viral and has invited quite a mixed response.

Ouch, that had to hurt, especially the part about the coffee.