Several Instructors devised a simple test to see how many people read then followed written instructions for doing something before actually doing those instructions. 3 out of 36 passed the test.One of two reasons many chronograph instructions say not to try to use the instrument to assess pressure is that interior ballistics are complicated enough that it is easy to get turned around.
The ten written test items said to do things; say your last name, scratch your ear, move your billfold to another pocket and other ridiculous things.
At the top of the page under the heading and above the test items were the "Instructions." Instructions read "Read the test items for spelling errors. Circle any found then hand the test paper to the Instructor."