"Hey Red," said the Blue ranger.

"I'm not Red, I'm Green," replied the Green ranger.

"Yeah, I'm Red," said the Red ranger.

"No way! You guys totally look the same to me!"

"Oh dear Blue," said Zordon, the powerful wizard mentor of the power rangers. "You appear to have developed dichromacy, or possibly anomalous trichromacy."

"Buh?" said Blue.

"You're colourblind, you fool! My magic can't save you now, and you can't be part of the team if you can't tell the difference between them. You're fired!"

"Screw you, Zordon," muttered Blue. He went home, phoned his lawyer and sued Zordon for more money than he'd have ever made being a stupid power ranger anyway.