article_snippet.sent: Scroll down for video .
article_snippet.sent: It was a risk, no doubt about it,' Mr Bray said. '
article_snippet.sent: because we're an independent charity and don't rely on public money it means we're relatively free to do what we want. '
article_snippet.sent: But that doesn't mean there couldn't have been repercussions.
article_snippet.sent: we aim was to get people to engage and learn - that is what was really exciting.