Writing with Bear

I have been teaching Bear to write (for a while now actually). One day he decides he wants to write, so he gets out some paper and a marker and gets to writing letters in random orders and asking me what they spell. Usually when he does this they don't spell anything, but every now and then I find he has managed to spell something.
Anyway after a while, on this particular day, he got bored with guessing and told me that he was going to write something specific and that he wanted me to come and watch. So I put down what I was working on and went and sat at his project table with him. He looks at me with a smile and says,
" I want to write Phillip"
So I got ready to help him and he says to me with excitement,
"I know how to spell it, D-A-D, right!"
I really hated to break his heart, but explained to him that D-A-D does not spell Phillip. I then had him sound it out and he realized he had spelled dad. He still thought that was pretty cool. So he ended up writing both.
:D

(You can see that he wrote x-ray on the page before)