On guessing someone else's height: If I do not consider the shoes I am wearing, it is impossible for me to make a reasonable guess about someone else's height. For example, if I am wearing flats, I guess according to my actual height. If I am wearing heels, I guess according to my height in the height of the heels. But what if I forget about my shoes? *oops*
What if there is another measuring system, such as how tall others look when they stand near a co-worker of a certain height. What if something happens there? The co-worker is wearing different shoes or taller/shorter hairstyle.*oops*
If this was not a convenience store with the height chart posted conveniently at the door, it would be difficult for anyone to make an accurate guess about the height. But, what if certain features in the bar room are used when gauging height? In our fictitious bar, we might wonder: How far off the ground is the railing behind the round tables? How high off the ground is the top or bottom of the fake plant on the north wall? How tall is Server A? How tall is Server B? Would this information help us to determine someone's height? *oops?*
Nature does not hurry, yet everything is accomplished. - Lao-Tzu