Bert trying to wash dried blood out of his hair.

he has a giant death rune tattooed on his back. in our world that tattoo could look a little silly but in his world it means that he is really badass. it does not depict a cross, it depicts a black sword (Humakt, the god of death and war carries a black sword and that black sword is the literal death), also Bert is a devoted Humakt worshiper so naturally he shows his devotion buy hacking death rune on his back.