Lan and the Warder Bond (AMOL Spoiler)

Is it true that every warder always goes beserk when their aes sedai dies? Or just that it is a common way for them to channel the pain, especially if they are already in a battle or violent situation, because they've trained their whole lives to fight and no longer have the will to live, so might as well go down swinging?

I always assumed it was the mirror of what the aes sedai experience when their warders die (intense grief, rage, depression, and mood swings) and it was just the socialization/training of the warder that led them to handle it differently from the aes sedai. But I may have misunderstood that, since the bond isn't perfectly symmetrical in other ways too.