Historical clue formulations

• Doofuses, north of the border — 2025-10-12
• Rubes, in Canadian lingo — 2021-02-02
• Bozos, north of the border — 2020-07-10
• Rubes, north of the border — 2019-01-05
• Boorish sorts, in Canada — 2007-06-19
• Con artists, slangily — 2005-11-22
• Swindlers, slangily — 2001-03-17
• Deceitful people, in slang — 1999-10-16
• Firefighters, at times — 1997-12-06
• Con men, in slang — 1996-10-03
• Firefighters, at times — 1995-11-11