Two years in limbo, it's a fine place

[Accuray]

Wireless webcams with night vision have really come down in price. I've often thought that if I were having problems with kids at my house, I'd install a ceiling-mounted one in our basement. You can set them up to motion detect and e-mail you pictures, or you can view and control it at any time from your smart phone. It can "see" with the lights on or off, and can pan, tilt, swivel and zoom.

Even if you never looked at it, just having it hanging from the ceiling might be enough to encourage the kids not to misbehave in your basement.