Some Mothers Do 'Ave 'Em recurring catchphrases include references to "a bit of trouble", which usually implies some sort of undisclosed digestive disorder, and to the cat having "done a whoopsie" (presumably a euphemism for having defecated in an inappropriate place, on one occasion in Spencer's beret). If Frank is pleased (or confused) about something, he will often use the catchphrase "Mmmm — nice!" or "Ohhh — nice!" Despite his unfailing ability to infuriate people, Frank is essentially a very sympathetic character, who inspires much affection from his ever-loving and patient wife, Betty. He also venerates the memory of his late mother, Jessica, and worships
Michael Crawford "Some Mothers Do 'Ave 'Em", Crawford continued to perform in plays and musicals, starring in "Flowers for Algernon" (1979) in the role of Charley Gordon, based on the book of the same title. He pursued another role on a very short-lived ITV sitcom, "Chalk and Cheese", as the slovenly, uncouth Dave Finn. The show did not go over well with his fans: the popularity of Crawford's portrayal of Frank Spencer, and the similar Billy Fisher character, had left him somewhat typecast, to the extent that they could not accept his very different role as Dave Finn. Crawford abandoned the show