Now that I can make Sabrina laugh her head off in two different ways, tickling and playing the airplane/flying baby game, I am the happiest daddy in the world. Life is never better than when I see her little eyes light up with joy. She even asks to be flown around now by giving a little jump forward when I'm holding her upright. What a fearless little adventurer. And no, I haven't hit her head on the ceiling fan.