You put your MP3 player on random. You have a playlist of 20 songs. What are the odds that the next song played is the same song which was just played?
I think the option is more typically called "shuffle", which actually accurately represents what it does.
I once had a MP3 player where “random” actually did what it said (for some value of “actually”), including playing the same song twice in a row once in a while.
The chapter on judgment under uncertainty in the (excellent) new Oxford Handbook of Cognitive Psychology has a handy little section on recent critiques of the "heuristics and biases" tradition. It also discusses problems with the somewhat-competing "fast and frugal heuristics" school of thought, but for now let me just quote the section on heuristics and biases (pp. 608-609):
My thanks to MIRI intern Stephen Barnes for transcribing this text.