Check out today's Cul de Sac

Check out today's Cul de Sac. Cartoonist have been saving themselves some effort on redrawing similar figures, at least since photocopiers became common, and certainly today with the prevalence of scanners. But not our Richard - note how Alice and Petey are slightly different in every drawing - and then enjoy that madcap 3rd panel. I think this gag actually works better in black and white too - the 3rd panel looks both more and less busy sans color.