F*ck Around and Find Out
Many people knew Rakkan's temper even during his hero days. He is very easy to offend if someone talks sh*t to him or to his party members and they don't deserve it. Or perhaps baseless gossip that didn't hold a candle to their group. Nevertheless, he is called sometimes the "Mad Dog" due to his tendency to become angry with others.
However, no one has actually seen someone like the Saintess Liliana angry before. In fact, she is the one they call, "Mediator" from their group and she is the one who keeps the party peaceful in case things don't come the party's way. With her being so kind, no one expected her to be so enranged today that would even shock Rakkan who hadn't seen Liliana get angry before in his life.
As for the Hero himself, half of his body is stuck on the wall. He is not dead, but he is surely incapacitated as a result.