Back maybe 52+ years ago I moved to Melbourne, Australia, from South Australia - the police in Melbourne at that time administered the driving tests - I 'failed' the color tests, and even though on the road test, I could correctly identify the status of each traffic light, and my driving was (virtually) faultless, I was failed by officers (who I suspected didn't want any 'blowback' should I be involved in a subsequent accident).
A more sophisticated color test, (ordered by the cops), showed that I perceived red darker than 'normal' people would see it.
Final road test - there's me and three cops, (one of whom was a sergeant), going through the "What color are the lights two intersections ahead?" routine. I'm nervous as hell, but doing well - although still suspecting they're going to find an excuse to fail me.
Sergeant says "Pull around that corner and stop at the curb".......turn the corner and the curb has a solid yellow line, so I think it's a 'gotcha'.
"Sorry, can't stop here, solid yellow line" I said, and kept going.
Sergeant says "When I tell you to stop, you $#@!* STOP"........turns out he wanted to buy some cigarettes.
I got my license.
"Exit, pursued by a bear."
The Winter's Tale, William Shakespeare