I consider myself to be a fairly intelligent person. One thing traveling has taught me is that intelligence is relative. For example, despite being able to deliver a baby, suture a wound shut, start an IV, dose a medication, etc., I couldn’t for-the-life-of-me figure out how to turn on this shower in Germany: 
proof that there is always more to learn.
*note: there are 5 knobs and two shower heads
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