What is the proper etiquette for serving lutefisk? Is it permissible to serve indoor or outdoor only. And must you serve it with Aquavit?

I had a colleague who lived in Tampere for a while. He was even thinking of relocating his family there for two/three years. Every time I saw him, he would joke about Aquavit and Lutefisk. He was appaled once when he ordered a medium sized pizza and Coca Cola and his bill came out to around US$30.00. Expensive, if you don't eat local cuisine. From his photos, I was so mesmerized by its beauty, mostly photos of fjords. And all that beautiful trees and forest!!

BTW, he loved Tampere. Water everywhere he said. And he did dine on reindeer. POOR RUDOLPH!!

And oh yes another colleague had a grandmother from Sweden I think it was. And she said her grandmother would serve Lutefisk. She didn't want to disappoint her grandmother so she willed her self to eat the dinner.