Because it perfectly captures his improving (but incomplete) understanding of the use of air quotes, (he "always" cracks us up when he "uses" them when he talks) and because it is a "frozen moment" which encapsulates the innocence and mindset of my son, I feel absolutely blessed to have this note.
And I hope the statement he wrote is never actually true. I will continue to strive to be the sort of dad who is friends with his son without him losing respect for me; without pandering to him or taking the easy road to gaining his favor. That strategy has served me well so far as both a father and a teacher. Most of all, this note reminds me that my son will not always be six, and I need to cherish every moment I have with him, even (and especially) the moments where he channels his adorable anger into priceless written declarations.