Official negociations must happen within the clan's earshot...
But only the youngest have a chance of being naive enough to think that's all there is to it.
About any other leader would make Leothclif a stronger and more predictable ally. Weg has to defend him officially, but... The embassador isn't naive either, but since Þrym being given up to the police is what they both want, he's not going to protest.
Boy, nothing is simple and straight forward here, is it? ;)
At least, the bit about not eating rodents raw is to be taken literally.
Important safety tip: eating raw squirrel is sure to make you hurl!
It's something we all better learn from tips than from experience.