I thought I should share a some what shorter and lighter story after my last two.
In my first area of Bella Vista there were many things that I had to learn about Argentina. One of the minor things that I had to pick up was how butchers greeted people. Because they work with meat their hands are usually covered in meat juices, and everyone else's hands are well, covered in who knows what. So butchers don't shake hands. What they do instead is extend their hand in a fist are you are expected to grab their forearm just above the wrist and "shake" their hand.
The first time I met a butcher and he extended his closed fist to me I had no idea what I was supposed to do. So I did the only thing I could think of, I gave him a fist bump. My companion, Elder Tenny, busted up laughing and the butcher was very confused, and I had no idea what was going on. Elder Tenny thankfully took the time to explain to the butcher what I had done and to explain to me the proper way of "shaking hands" with a butcher. I still think my way is better.