This is a pretty good joke. Not great, not bad, but pretty good. You've got your standard phrase with a funny scene and sort of a "well, of course" gag. And it sells, which in the end is really what you're looking for. But it's also one of those cartoons where I like to imagine the scene immediately after the scene we're presented. Think about it. A room full of people who are apparently waiting to hear what this guy has to say, and then he walks in with a ventriloquist dummy. Does he give a funny presentation? Does he do it straight? Does he acknowledge the oddness of what's happening, or does he present this as perfectly normal? And as much as you'd think I should know what happens (I created it after all), I don't. But I'd really like to find out.