"Do as I say, not as I do." Despite serving as one of the most annoying words of "wisdom" to hear from any parental lecture, several people have decided to adopt this as their personal manta, doing their darndest to make sure the rules of the world are strictly enforced ... to anyone other than themselves, that is.

From parents who believe that all screens should be turned off hours before bedtime ... except for their own, to 'Blackfish' inspiring one woman to change her diet to pescatarianism, here are 21 more of the most hypocritical things people have ever seen or heard.