I mentioned this a few days ago, but I still remember McCarver jumping on Alan Ashby in the 86 LCS for demonstrating a pitching mechanic to the hurler.
It may have been the same game, but later Ashby popped a foul ball that landed in some additional seating near the field the Mets brought in for the series. Ashby then hit a homer, and McCarver went on and on about what a shame it would be if the outcome of the game were decided by those additional seats.
I've pretty much despised him since then. Of course, the fact that he was a Met broadcaster means that he was/is pure evil and remains worthy of my contempt.