We all have bad days at work, but it’s very likely that this is one of the worst. LiveLeak user Frederick Russell posted this video of a McDonald’s employee being grabbed by the hair and wrenched out of the service window by a customer. Apparently this was done with such force that the window was broken during the incident, and from watching the video, it seemed quite calculated considering that the customer immediately starts talking smack upon seeing the employee.

It’s not clear what inspired the attack, but knowing the United States, fast food is serious business and situations involving it can go zero to a hundred real quick. An employee misses a single McNugget? That’s fair game to commit a brutal assault. The employee gets some serious air upon her removal from the window, and unfortunately will surely be a staple of the torrent of memes and Vine videos to come. Check out the video for yourself in the gallery above.

More McNews

Where can you get the best McDonald’s in the world? A guy who’s had it in 34 countries can tell you
Mcdonald’s drop their ‘Big Mac’ collection
Burger King proposes collaboration with McDonald’s: The McWhopper