And of course, the third problem is the one I found out the hard way in Palau, which is the bends.

Bows of apology tend to be deeper and last longer than other types of bow.

I made a really stupid kind of mistake that most 19 year old males do when they think they're immortal, and I got a bad case of the bends, and was paralyzed, and had to be flown back for treatment.