"Guy Gardner's Baaa-aaaack!" from Justice League International vol.1 #18 (DC, 1988) by Keith Giffen, J.M. DeMatteis, Kevin Maguire and Al Gordon
One of the weird things in JLI was the transformation of Guy Gardner from a right-wing a-hole to a warm and fuzzy, touchy-feely, naive left-winger. It was Batman's punch that did it. And then Lobo showed up, punched him again, and we got our old Guy back! A case of Giffen and DeMatteis knowing when the joke has gone on long enough. JLI was probably features the series' best sequence of issues. Justice League was too serious, Justice League America too comical. JLI was Goldilocks' "just right" Justice League.