If you are a design engineer or a building contractor like ourselves, you must have ,experienced losses stemmed from incomplete or inaccurate measurements!
For an engineer, nothing can be more annoying than having to stand up from the computer because of an imprecise measurement and spend one more day remeasuring.
In other cases, realizing that something will not fit during execution or the situation where you have to modify any incorrectly manufactured part on site can be really irksome.