When you get burned via a witty reply all email with the senders intent to publicly shame and humiliate your egregious error.
If you would have let everyone know those were biscuits and not cookies you wouldn't have got Stevens(d).
When you reply all in a witty manner to publicly shame and humiliate an egregious error from a co worker who sent an email.
You would not have got Stevens(d) if you would have let everyone know those were dog biscuits and not cookies.
When a direct reply to the sender of an email would suffice, but public shame and humiliation are more appropriate so you reply all to an egregious error in an email to establish dominance.
You wouldn't have got Stevens(d) if you would have let everyone know those were dog biscuits and not cookies.