In regards to shaving your Adam's Apple.... the skin on the neck is very loose and can be moved left, right, up, down, wherever you want. So pull the skin off the Adam's Apple and move it to a flat spot on your neck to shave it. Then pull it the other direction and repeat to make sure you got it all. This also applies to any curved surface like your chin/jawline if you're having issues keeping blade angle constant over the radius.