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

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!