Season 14, Episode 5 - "Bulldog Begins"
Bulldog is picked at random to take a look at the station’s TV aerial for the break room, unfortunately a series of miscommunications leads to him falling off the ladder and injuring his head. Bulldog is able to return from the hospital by the end of the day, but the employees become concerned when it appears he has suffered memory loss. As a result, Bulldog’s personality “reboots” and he becomes an entirely different person. Discovering his jerkier new attitude, Roz becomes determined to get the old Bulldog back with the help of Gil and Noel. A visit to the hospital confirms that Bulldog’s memory loss will be short-term and the employees are forced to put up with it. Luckily, a careless act by Bebe restores Bulldog’s memory, and after being informed of the feuds he has initiated, Bulldog must do whatever it takes to make peace.