Of course he didn't
He did not even power off his laptop after he spilled water on it.
It's hard under pressure. When it happened to me, all I thought about was clean it up very quick. Quick, do it. And then (before you told me the trick) I would have never thought about turning it off, on the other hand, I just prayed really hard that it would KEEP being turned on. I like stared at if for 2 minutes.
Then the mouse pad went nuts, but I now think it was because of a thing I did. When I was cleaning it really quick, I pressed a lot of keys on the keyboard (I even put the screen sideways, still have no idea how I did it, but some short cut)... the mouse was cuckoo, it kept selecting everything instead of simply going up or down the page. But I did a system repair and it fixed it, so it was probably another short cut I did not know how to fix.
Bottom line: I was REALLY lucky!