Lol.
Serious? You said you didn't want to put lightbulbs up and you lose access to the internet?
Also, unless your dad is that good with computers and found some way to completely remove internet, he can't just shut off the internet. He probably just removed the connection setup or removed the ethernet cable. Lol.
From what I can understand, though, he wasn't removing the network hardware from the computer, so it's probably really easy to set up again.