Sure, if I was that guy and the pizza guy had actually made that up, of course I'd be very angry and that would be a terrible thing to do. But do you really think that spiteful life ruiner pizza guy that calls the police with a made up story as retribution for lousy tipping is more likely than truthful pizza guy having actually seen the guy smoking around his kid and reporting it? I mean, if you don't think that's any big deal anyway, that's another matter, but I don't see why anyone would rush to judge the pizza guy with just that limited information.
Hopefully it's past derail o'clock.