I'm thirteen, and we have an excel unit in our computer class. When she's want to teach us something, she'd deploy her screen on ours and we couldn't do anything. It took me until the third time (yes, that long) to remember the connection was wired via Ethernet. I took the cord out and my computer was free! During the boring "lesson," I opened Code::Blocks to work on a fun side project. When she notice she wasn't connecting to my computer, she walked over to my chair and saw Code::Blocks on my screen. Then, I noticed her behind me. I quickly pressed ALT+TAB. She walked back to her chair. To this day I swear she thinks Im a hacker.