[Question] Do you know a good game or demo for demonstrating sunk costs?

[AnnaSalamon]

I’m hoping to find something that can be done in 5 minutes or so, as a classroom demonstration (for the rationality curricula).

I find sunk costs have a large effect in the board game “Go” (so that beginners are instructed “not to throw good stones after bad”), and I assume it also does in poker, but both of those games are too long and too full of distractors to be used in a simple demo.

Thanks for any suggestions!