Captain Kid: I guess I'm about the best climber in these parts. Harold Lloyd-looking kid: I guess you're about the best bull-thrower! CK: Oh, yeah? What do you want me to climb? Name it and, I'll do it! HLLK: All right, climb this beam of light! (flashlight) CK: Never mind, I'm wise to your tricks... ...I'd get half way up and you'd turn it off!!
Stumbled across this in "Captain Kid", a backup feature in Captain Marvel Adventures #57 from 1946. IYKYK
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