I find the most sensible questions & observations come from women, people in wheelchairs, older children & teenagers. They will usually know nothing about the vehicle but usually seem to be very receptive. They appreciate someone explaining what it is all about. What impresses them the most is to see pictures of my Pig in action being stoned & petrol bombed, this gives them a tangible link to the past.
The least sensible observations come from young adult males particularly in a group.
With veterans the response is variable. Again there is more sense talked by an individual than sometimes from a group. The comment that puts me on edge when I display the Pig is "Oh yes I know all about these mate, the old Sarrycan"