So , really - you actually see typo bugs in the wild? I haven't seen one of those for 20 years.

I do see lots of cases where people didn't test it or used the wrong mechanism.

I have to go slowly because somebody already went fast and broke it.

And a friend once told me "LZW can compress code faster than you can." :) Which does not go to the value of orthogonality of purpose in source code, but I enjoyed the irony of the comment very much.