To be more specific. If I, as a ancient Gallic king, sent a messenger to another king, what would he do if he wanted to insult me and my messenger. There are several ancient accounts in the middle east of messengers being sent back with their beards shaved off. What's the Gallic equivalent?
And I'll have to say the replies I've gotten so far are very, shall we say, interesting. . .
When Vercingetorix didn't agree with someone, he had his ears cut off and one of his eyes gouged out.