What happens when you give a 6 year old boy a pen

So we are in church this morning and Bug's Sunday school has the kids stay with their parents during music and then they all go down to their classes after music is over. This is a great idea in theory, although a little foreign to my kids as our old church just had the kids the whole time. So my kids aren't very good at sitting still in the sanctuary with us. This Sunday I remembered to bring some coloring stuff and a pen from my checkbook to doodle with. Just to keep him quiet.

He sits down and starts drawing and being entertained by this. I was standing for the music and sort of forgot what he was doing until I look down and realize what he had done.

He had taken the pen and drawn an arrow on his forehead.....Just like Aang.

Me- "what did you do?"

Bug- "I'm the Avatar!!!!"

Me- "yeah but I can't wash that off"

Bug -"Good leave it on so the whole world can see how cool I am."

Me- "Well I guess thats just what we're going to have to do"

So........he wore it all through the service and his Sunday school class. What's funny is he actually had a couple people tell him how cool and creative this was.
Ehhh......Whatever. What can you do? :)