If you want to show your kids an idealised slant on where the bacon in their butties comes from an afternoon in Home farm is just the job! see Link (Archive Link )
I worked at Tatton farm in the late eighties on a maintanance team on a YTS scheme.I was one of the team that put the roof over the engine bed and when the roof was complete i also worked on installing the steam engine with a merchant navy engineer called Fred.