Three students were asked to evaluation the hypothesis "All odd numbers > 1 are prime."
The math major replied "3 is prime. 5 is prime. 7 is prime. 9 is ... NOT prime. The hypothesis is false."
The chemistry major replied "3 is prime. 5 is prime. 7 is prime. 9 is ... NOT prime. 11 is prime. 13 is prime ... The hypothesis is looking good, within experimental error."
The engineering major replied "3 is prime. 5 is prime. 7 is prime. 9 is prime. 11 is prime ..."
That's one way to cope when you're overmatched by rigor. ;)