That's right, I've created a four-year-old, 42+ pound, snap happy monster. And this really, truly is all my fault. Let me 'splain.
Sometimes to get Logan's attention, or to try to get the point across that X needs to happen now, as in right now, I would snap my fingers. A typical exchange might go thusly:
Me: Logan, it's time for bed. Let's go brush your teeth.
Me: Let's go now. *snap*
Me: Logan, what do you want for lunch?
Me: *snap* Hey, Logan, what do you want for lunch?
Logan was fascinated with the finger snap, the simple application of pressure of the middle finger upon the thumb causing the middle finger to slam into the palm of the hand. He wanted to learn how do to it. At first he just tried to imitate, rubbing his first two fingers together. Then he asked how to do it, so I would show him how, first showing him with my hand and then putting his fingers in the right position and trying to explain so that a four-year-old would understand where the application of pressure should occur. After a week or two of showing him and him trying to get it on his own, one day we're sitting on the couch and he snapped his fingers.
I congratulated him on learning a new skill. That was a few days ago. Now, the boy is punctuating *snap* everything *snap* he says *snap* with a *snap*. He'll even be in bed snapping his fingers as I try to get him to go to sleep; the two of us in the dark, and his little fingers snapping away.
Needless to say, it's gotten old really quickly, and now I'm working on what so far seems to be the more difficult task of explaining to him that it's not necessary to snap his fingers about everything and that it's rude to snap his fingers in someone else's face. At least we haven't gotten any notes from his preschool teachers yet. And, it's made me seriously pause and consider before snapping my fingers when I'm trying to get his attention.