https://www.kepner-tregoe.com/blog/help-my-car-is-allergic-t...
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It’s interesting to note how the “vapor lock” explanation reversed itself over time. Earlier versions mentioned a flavor of ice cream that required handpacking (while all the others were prepackaged and ready to go); the vapor lock was said to form because it took so much longer to get out of the store with this one flavor. In newer versions, we’re told that vanilla was a popular flavor and was kept in a special case near the door, making purchasing it and getting back out to the car take considerably less time; the car then wouldn’t start because the vapor lock did not have enough time to dissipate.
Despite all the complexities and exceptions to human behavior, I think it can be argued that we are far more repetitious and our actions more reproducible than we'd like to admit lest we think we are giving up some of what we thought was actual human natures.
However, we also regale to one-another tales of folks in simpler lifestyles that "always do the same thing, every day, for 50 years", lifestyles that don't change much over generations, and so on. So, if we look at this from a wider perspective, rationally, it shouldn't be that shocking.
Still is interesting, nonetheless. :-)
Edit: After seeing the sibling comment point out this was Snoped, I hope my otherwise seemingly insightful point still stands...:-p