I didn't do it for any rebelious reason at all. I wasn't even that bothered about buying cartriges, I was basically happy with my shave. It just didn't engage me.

I have noticed that there are a lot of shared hobbies, and that there are a lot of skills or hobbies that many people hint at being tempted to get involved with them selves. I think SR shaving is quite a good indicator of the type of person you're talking to, but not really rebelious.