Beware venturing into Scotland, if you are a tad larger than Nanny's defined girth.
Nanny has plans to use a specially trained force of "Fat Policemen" to rid Scotland of obesity.
It seems that the Scottish Executive is considering plans to send "outreach workers" (ie busybodies) into pubs clubs and bingo halls, looking for fat people.
Once they have identified a portly person, they will then impose themselves upon the hapless individual and "encourage" their prey to take more exercise.
The second word in the response to such "encouragement" is "OFF!".