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Originally posted by HappyGirl:
I don't think that kind of involuntary use of powers happened after the first season.
At least not while he was awake. A good point.

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I would speculate that Clark's Superman experience gave him enough practice with his powers that he gained greater control as he got more experience and got more comfortable with them.
Either that or else it provided him an outlet for energy that he had to release in some way...Kind of like kids becoming very fidgety if confined to their desks at school for too long. Or maybe both.

cheers,
Lynn