I recall my B-747 Oral in a simulator. I went through first in the left seat, and the examiner was pleased, and he signed me off.
We then switched seats. My mate was a big, short tempered Scottsman. He had done everything well. I watched the examiner sign his check as SAT.
Then he asked "What does this switch do?", pointing to the overhead guarded Emergency Landing Gear Extension switch.
Mate - "That switch extends the landing gear in the unlikely event of the landing gear not going down.".
Examiner - "Fine. How do you operate it?"
Mate - "You snip the copper wire, raise the guard, and then throw the switch. The gear should extend."
Examiner - "Correct. What extends the gear?"
Mate - "Air pressure, stored in a tank for this purpose."
Examiner - "Correct. How does the air pressure extend the gear?"
He was waiting for the standard reply of the air powering a turbine, etc..
Mate - "You throw the fookin switch and the fookin gear goes down and fookin well locks, that's how!"
This was said in his finest Scottish Burrrr, and his face was as red as his hair, at this point.
Priceless! I almost pee'ed myself.
The examiner ripped up his sheet, and re-scheduled him. He passed next time.