Two weeks ago this literal statement from client:
I reckon <Your Product> is almost at the point where we can bypass <Competitor Product> altogether, just need <Feature X>

After various much back and forth email, drilling into <Feature X> and asking pointed questions:

At the end of the day because of <Reason Y> I'm going to need <Competitor Product>'s <Feature Z> anyway.

While I appreciate this was necessary, valuable and saved my organisation a great deal of time, it is supremely annoying that it is necessary at all.

95% of of product management seems to be about preventing dolts from being dolts.