Engineer, Physicist, Mathematician (EPM) Jokes Recurring Jokes These jokes are circulated by word-of-mouth around engineering, You'll find many variations of the following jokes out there. The “Odd Primes” joke Probably the most well known EPM joke of all. Here are 3 versions: Some more variations on the “Odd Primes” joke: The “Canned Food” joke: The “Calculation” jokes The “Fire!” joke The “Zeno's Paradox” joke The “Herding Sheep” joke The “Black Sheep” joke Miscellaneous Single Jokes These jokes don't seem as common or varied, but still get the point(s)