Some Mothers Do 'Ave 'Em by Crawford himself, as well as featuring various well-remembered and much lampooned catchphrases, that have become part of popular culture. In a 2004 poll to find Britain's Best Sitcom, "Some Mothers Do 'Ave Em" came 22nd. The expression "Some mothers do have them" is meant to refer to someone clumsy or foolish. The wimpish, smiling Frank, sporting his trademark beret and trench coat, is married to the apparently normal Betty (Michele Dotrice) and in later series they have a baby daughter, Jessica. The character was popular with television impressionists such as Mike Yarwood in the 1970s, particularly his main catchphrase,
Spencer Trethewy prison. This was reduced due to some successful appeals to eleven months. In 2007 Trethewy, having changed his name by deed poll in 1998, taking his mothers maiden name, Spencer Day, emerged as the owner and manager of Combined Counties Football League club Chertsey Town where has invested heavily in the club including kitting out their 22 sides, ground improvements and substantial playing squad investment. Day is reported by The Non-League Paper to have built a substantial company finance investment business holding (managing partner of HH Finance) in the last fifteen years which specializes in residential and commercial holdings worldwide.