[Christ]

You're supposed to... (Supposed to, doesn't mean you HAVE to.)

When you change your brakes, (if you're a safe driver) you're going to stop with them before your ever get up to any amount of speed... if there's a problem, you'll notice it immediately.

I don't think I ever remember to buy brake cleaner or anything else, so to seat my brakes, I do a few hard stops from 30, 40, 55, and 65, in that order, pumping the brakes, not slamming on them. (Gives them a chance to cool down for a second, every time you let off them.)

This is how I've always done it, and how I was taught to do it by old guys who taught me to work on my own brakes. (Years ago, I was afraid to touch anything that could kill me or others if not done properly.)