Welcome to Smallville
I think that pretty much says it all right there, but just for the record, that comes from Superboy #122's "The Jealous Clark Kent," a story involving a schizophrenic ventriloquist with a Superboy puppet who also uses--what else?-- authentic Red Kryptonite in his act. Because apparently, back in 1965, people hadn't quite figured out that performing on stage with radioactive space rocks was probably not a good idea.
Needless to say, Clark gets a hefty dose of Plot Twist Radiation and ends up developing the ventriloquist's own Devil Doll-esque hatred of his Superboy puppet, and, well...
..things pretty much go downhill from there.
You know, there was a time when my parents caught me in the basement slapping around the puppet, and... You know what? I'm going to go ahead and cut that one off right there.
Regardless, Superboy's eventually cured of his dementia by a dose of Green Kryptonite (it's probably best if you don't ask), and ends up curing the ventriloquist of his multiple personality disorder... by making him think his dummy is talking to him.
So it's pretty much just another Tuesday in Kansas, I guess.