What is the most messed up thing a family member has done? My Step Brother ran away with my Uncle's wife.

My Step Brother (Dad's son) ran off with my Uncle's (Dad's Brother) wife taking around $10k from him and having a kid together. My uncle and his ex wife had 2 kids together too who were about 4 and 2 at the time. They were married for over 17 years.

A top contender would be one of my Aunt's (Mom's side) ended up coming to see my Grandpa as he was dying and proceeded to empty out his bank account (she had power of attorney at an earlier point) taking around 100k from him. He died roughly 2 days later.

Also there is 3 cousins (2 from Dad's side and 1 from Mom's side) who were on heroine and one of which stole around $1000 of tools from my Dad. All 3 of said cousins also stole from various other family members and non family members too.