A Quote From the Die-Hard to Excuse It

I spent about half an hour in my room with a huge bag taking out all the green sweets and then I went to put the bag of sweets back because I don't want us to just steal people's sweets or people's sweets. As I was leaving the room having replaced the bag, I saw this massive whiteboard at the front of the room and so I thought okay I'll just grab a marker pen. I grabbed a marker pen and I wrote in big letters Yippee-ki-ay motherfuckers in capitals on this whiteboard. Then that was actually ideal timing because I heard someone coming down the corridor and doing a bit of an oi and what are you doing?