Marine engines run in the opposite direction, counterclockwise. :-D
I can't tell you how many times I've forgot a flare nut. :read2: I also had a habit of popping the cap off a spray paint can by whacking the cap on the edge of a bench. I did that just a few months ago on a can of Gunk Engine Cleaner and it broke the spray top off along with the inner tube. 5 bucks shot to sht.