I'm sitting on the sidelines chatting with a girl from the ward that I think is smart, cool and attractive (call her Girl A). With no warning Girl B, who I considered attractive but not really my type, flops herself onto my lap and says "Hey! How's it going!". I can't remember exactly what happened immediately after that.
Fast forward a number of years:
Girl A is the CEO of a $20B/year corporation.
Girl B and I are still happily married.