Speaking on the set, Sheiner described the difficulties of working with a heavy makeup appliance: "You hear your voice in muffled tones, the built-out mouth seems ponderous and you must over-react at first to make a point. Working outside in 90-degree heat also produces body sweat, but the face remains dry because all the pores are sealed off by the rubberized mold." Co-star Biff Elliot recalled, "David initially struggled with his 'ape' walk. When he first walked onto set his walk looked like a cross between Chico and Groucho Marx, we couldn't stop laughing! We said, 'C'mon, that's not an ape walk, you're doing Groucho!' To which he replied, 'Well, I better go back and get my moustache painted on then!'