He tells an interesting story of a relationship between two vikings, where one receives an impressive gift from his friend, and immediately sets out to kill him

He tells an interesting story of a relationship between two vikings, where one receives an impressive gift from his friend, and immediately sets out to kill him, because there's no way he's going to spend a week (or however long) writing the kind of epic poetry that such a gift would deserve. I think in the end he misses him, and has to go home and write the poem.