Gas Gang Chloroform, Carbon Monoxide, and Carbon Dioxide. Whereas the Metal Men were approximately the same size as Doctor Magnus, the Gas Gang were anywhere from one-third to twice his size. On Chloroform's initial attack, it caused the Metal Men to break out in fits of hysteria ala Nitrous Oxide (Laughing Gas) which Doc Magnus said was chloroform's initial effect. Before Lead could wall them off, Mercury literally "broke up laughing", opening Oxygen to attack and causing the Metal Men to begin to rust. During the chase Carbon Monoxide (called "CM" by Carbon Dioxide) attempted to poison them with fumes, while Carbon
The Laughing Policeman (song) Penroses wrote numerous other laughing songs ("The Laughing Major", "Curate", "Steeplechaser", "Typist", "Lover", etc.), but only "The Laughing Policeman" is remembered today, having sold over a million copies. Its popularity continued into the 1970s, as it was a frequently requested recording on the BBC Radio 1 show "Junior Choice". It even had a dance mix made of it, which was released on a 10 inch 45rpm disc, resembling an old-style 78rpm record, with the original version on the other side. Stikkan Anderson gave the song lyrics in Swedish, as "Den skrattande polisen" ("the laughing police officer"), which was recorded and