With seemingly increasing frequency I come across a phrase using 'learn' when I think it should be 'teach'.
The classic example is 'that will learn them!', as in "Shoot all criminals - that will learn them!". I thought this was being deliberately wrong for comedic effect, in keeping with the general sentiment of the sentence.
Another example from a Stack Exchange site (http://programmers.stackexchange.com/questions/53880/stuff-you-should-have-learned-in-school-but-didnt-pay-attention-to-at-the-time)
I don't know if you can learn someone to write at this age
Am I being overly fussy/old fashioned or is this just wrong?