It's rare that fans ever see a side of any Royal family member that isn't meticulously choreographed, and I don't mean that in a bad way. When you are part of the most notable monarchy in the world people expect a certain level of decorum.
In a recent viral video, however, fans are seeing Prince William like they never have before. To be fair, the only reason the future king of England got so upset was because his children were put into danger by a photographer who got a little too close for comfort.