Earlier today,we saw that Batman was ready to retire, psychological paralyzed by an inferiority complex triggered when he took one measly bullet during a mission.
Superman's "brilliant" plan--set up a fake crime wave in Kandor, so Batman could solve it and get all better.
Problem--the plan misfired (duh), the menace was real, but Batman found out it was a plan and is now all "I hate you!"
Now, surprisingly, Kandor turns out to be a lot like Vulcan, in that this advanced scientific society settles their disputes with primitive armed combat rituals:
Anyhoo, as we saw yesterday, Batman goes on to whip Metalloid butt, and apparently, all is forgiven:
Oh, Silver Age, don't ever change...
From World's Finest #143 (1964), as reprinted in World's Finest #197 (1970)