Only 2 wheels!

So about 2 weeks ago B-man asked me to take his training wheels from his bike. I did this, and he acted as though his bike was a foreign object by not touching it for a few days. Well I did sneak a few glimpses of him "practicing", but acted as though I didnt notice. Yesterday I was getting the mail and he comes whizzing past me on his bike! I was shocked. My first though was-why are you in the road, and then I realized he was riding his bike all alone with no training wheels!! Such a big day!!