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Negative reinforcement works :nj

Here's the best way to learn... Lather up a balloon. If you can shave all the lather from it without puncturing it, you're ready to shave people.

You can also use the AC. It looks like a straight, is extremely sharp, shaves well and is tough enough to be autoclaved for sterilization.

You would probably need to be certified as a barber to be able to do that professionally.