People get so wrapped up in what they're doing most of the time they don't realize how intense they can seem. Whether they mean it or not they come off one way but every depends on perception. Especially when it comes to kids. The golden rule can slap them straight in the face when one kid does something and they do it back but the reaction blows up in their face. Or your not familiar with something so people react based on instinct because everything is so INTENSE.