 Olaf routinely used force to compel conversion to Christianity, including execution and torture of those who refused.Several instances of Olaf's attempts led to days of remembrance among modern heathens similar to the feast days of Christian martyrs.Raud the Strong, remembered 9 January, refused to convert and, after a failed attempt using a wooden pin to pry open his mouth to insert a snake, was killed by a snake goaded by a hot poker through a drinking horn into Raud's mouth and down his throat.