Any guy in this world with a functioning penis knows how troublesome a boner can be. It can be embarrassing if it sprouts up in public. It can cause major teasing in junior high after the pretty girl in your class brushes up against you. And worst of all, it makes it hard to pee in the morning.
Ask any of the guys over at AwkwardBoners.com (note: probably not safe for work) and they’ll tell you how embarrassing a random boner in public can be. Don’t worry there isn’t any nudity, at least not from the few pages I saw but it’s pretty damn funny.