Seriously, just do that and it will work out most of the time. The only exception in my mind is if you are comparing the range or spread of two data sets and neither one is close to zero.

I’ve been to Indonesia, and people there are normal human beings who are in fact somewhat shorter than Europeans on average. But their heads were typically around my shoulder height, not my knees. Some political violence has occurred there in the not-so-distant past, but I found the culture warm and hospitable. Like almost any country not at war, the biggest risk to your physical safety is probably being in a car accident or hit by a car. The next biggest if you are there for any length of time might be air pollution and second hand smoke. Once an Indonesian woman yelled at me to not sit next to her on a ferry. The ferry was crowded and there was nowhere else to sit, but I was eventually able to solve the problem by swapping seats with another woman (my gender being what made her uncomfortable apparently.) Other times I had groups of female Indonesian tourists stop me on the street and ask to take vacation pictures with me to show their friends back home. This was when I was quite a bit younger than I am now.