The original George Scott trade to MIL is the reason I am a Sox fan, today, and that was a bad trade, too.
George Scott was traded by the Boston Red Sox with Ken Brett, Billy Conigliaro, Joe Lahoud, Jim Lonborg and Don Pavletich to the Milwaukee Brewers for Pat Skrable (minors), Tommy Harper, Lew Krausse and Marty Pattin.
I used to live in Milwaukee and still am a Bucks and Packers fan. My favorite player on the Brewers was Tommy Harper. Shortly after we moved from Milwaukee to Portland, Maine, this trade was made, and I switched to being a Sox fan.
Sidenote: We did get Bernie Carbo with Scott in that Cooper trade.
Carbo is a two time trade acquisition by the Sox.
We traded Reggie Smith and ken Tatum for Carbo & Rick Wise in Oct '73.
We traded Carbo to MIL for Bobby darwin & Tom Murphy in June '76.
That December, we traded Cooper to MIL for Carbo & Scott.