oompilot;hmmm,i always thought it was students job description to train himself,correct me if am wrong,and pay an instructor money to train himself.
Must be the famous jealous"airline rejected wannabe instructor" situation
You will fly a jet some day,don't take frustration out on your students.
Maybe you should get a pair of raybans,you may be able to see what they see!
As an instructor remember student fails;instructor fails!