Every time we have snow and ice conditions in the mountains, people die trying to do things they shouldn't do. People walk on thin ice at Jackson Lake, hike the Acorn Trail or Mount Baldy or the Little Jimmy Trail or Baden Powell when the trails are covered in ice and it's a looooong way down. Even experienced, well-equipped hikers can slide down ice chutes.
I don't hike steep places until the snow and ice have melted.
But I don't know how you can control bad judgement. It just happens.