I was entering the classroom to teach a Year 11 class and saw a technician fiddling around with my PC. It turned out he was given me a new machine to teach with...and it was now equipped with software to control all the other computers in the room.
I have to profess that the "kid in a sweet shop" expression pretty much describes my behaviour over the next sixty minutes.
Using the new software, I blocked the Internet on all the machines; took over the kids' computers and broadcast the whiteboard content on their screens; sent messages like "hello" to some of the PCs ; blocked the machines of any kids who were not on task (that was sooo much fun - suddenly their screens turned dark blue!) and basically tried out every feature available....to the understandable groans and sighs of many of the students, who just wanted to be left alone to do their work.
Aren't a terrible teacher? (especially since I spent the entire lesson with an evil grin on my face, working out new ways to control the machines).
I don't know about the kids, but this was definitely the most fun I've had in a lesson in the last six months.