Yeah, from my perspective, nobody is completely "normal". We all have traits that fall outside some baseline. We can be normal TV watchers (watch the average number of hours that everyone does), but not be normal with computer time (spend far less time on the computer than the average user).

It's all based around one action relative to a large group.

Let's take an example. According to Nielson, Americans spend 34 hours per week watching TV. I myself spend about 20 hours per week watching TV. Ergo, normal would be 34 and I'm not a "normal" TV watcher.