It is funny you say that because I think one theory is that Chuck Tingle might have been created by one of the McElroy brothers during their time at Polygon.
You could almost consider what they do now to be an audio family sitcom.
I really only listen to sawbones but I asked my wife who is a fan and she thinks it isn’t true because she has a vague memory of the McElroy brothers of having done an interview with Chuck Tingle’s son. I asked if they could have just hired an actor, but she doesn’t think it was a bit because the son was basically like “my father is a schizophrenic and this is how they work through their sexuality.” So not funny necessarily.