Unlike navs, pilots are subjected only to pilot trainers.
On one sortie, NW of Stornoway the nav requested a left turn when he meant right. Next, NE of Aberdeen he again requested a left turn south.
Finally, given a snap diversion to Aberdeen he again called the turn wrong. Having chidded the stude twice this time the pilot executed a 270 degree turn.
The pilot was a complete prat. He couldn't see how the stude was barely holding it together. Not only that but his long turn ate up our fuel margin and we no longer had fuel to fly the proceedure. ATC was pissed off and my stude was totally unnerved before the hop back to base with no NAv kit like whizz wheel, fuller, or dividers.