I was surprised that you didn't show the viewers how to inspect the brake drum for wear and grooves where the linings contact the drum. I also wonder how you can adjust the brakes without having the tire on to spin.
My old auto shop teacher would have flunked you on your brake job and made you do it over and do it the correct way.
One last thing, if you are going to do a video on brakes, shame on you for not doing a complete, competent job. I hope nobody picks up your bad work habits and hurts himself or others because of faulty brakes.
Besides what could possibly go wrong?
