Fort Knight Pun

Alright, listen up, you absolute buffoon. You think you're clever, huh? You probably wipe standing up and think that ketchup is a vegetable. This 'joke' is playing on the words 'fortnight' and 'knight', get it? 'Fortnight' means two weeks, and you sleep in a castle, like a KNIGHT. So, you're calling it your 'fort knight' because it's your night to sleep in a fort, which is a castle. Get it now, or do I need to draw you a picture?