A childhood belief about father christmas

As a joke, my 10-year-old brother, at christmas time told me when I was four that Father Christmas was not at all jolly, fat, and nice to little boys and girls. He said that Father Christmas was evil,and would give kids nightmares who believed in him. I was so angry with Father Christmas that night before Christmas that I took some Laxatives from my parents medacine cabbinet and poured it into the milk we left for Father Christmas by the fire. In the morning however, my dad was extremly sick, so sick he had to be rushed to the hospital. Later, I found out that I was the one who made him sick. That was the worst Christmas of my life. Not only did I find out that Father Christmas wasn't real, but my dad was very sick. Still to this day, It's hard to forgive my brother for what he did to me.