Sort of both really. Strictly speaking it's a private arrangement, but the school got my details from the YG website and any money they offer above petrol will go to YG. We have a lottery bid on the way at the moment and if it comes off one of the projects involves me going into The Yorkshire Waterways Museum and doing the same thing as part of their school visits, for the next 3 years. A few years ago I was doing this at a secondary school as a paid supply teacher, but I often go into primary schools as well.