and bob's your uncle.
In this day and age it might as well be Alice.
not validating inputs is the best example
but it sill happens.
There, you proved it!
That said, I make $500,000.000/year.
$500,000 is a lot of money. Even without the three decimals...
Those who can, do; those who can't, write. Those who can't write work for the Bell Labs Record.