I played at a Viking Festival in the middle of last year. I knew mine was going to be the first set on the weekend's music programme; what I didn't realise was that it was also the beginning to pretty much the entire event. So I played a set to a group of people dressed up in Norse togs, carrying drinking hons and replica battleaxes, who didn't yet have enough alcohol inside them to get properly rowdy. The most sedate bunch of Vikings I've ever seen, but a very friendly bunch.