Left the plug out once. That was how I found out about the short in my bilge circuits. Made it back to the ramp just in time.

Also forgot to trim up the motor once when I was taking it out. SSSCCRRRAAAAAPPPPEEE! That was embarassing as hell.
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The art of government is to make two-thirds of a nation pay all it possibly can pay for the benefit of the other third.--Voltaire