From here on after the clansman is now called Jenny's.
Victor takes just one bite out of his breakfast black pudding before binning it, finishing the meal as soon as he started it. As Greg puts it, this is 'bad acting…it's not method!'
Winston's golf ball changes colour between shots when he goes to tee off against the neds.
Jack and Victor tell Barbra from the charity shop that they are from "Craigbank", a real area in Glasgow, instead of the fictional area of "Craiglang" where the show is set.
In the credits of Series 1-3, Navid was listed as "Navid Ingram", which is Winston's surname. This has been removed in Series 4.