Monopoly

I just arrived home from playing Monopoly with my friends Dave and Karla....again. We've kind of gotten into a pattern of playing Monopoly on a pretty regular basis. I have never won, ever. Sometimes I know within the first round that I'm going down fast. Other times, like tonight, I owned an entire row with houses and everything and no one landed on my fully loaded property!!! How does this happen?! Karla landed on free parking nine gazillion times. She feigned guilt but I know the truth! Dave and Karla are stuck playing Monopoly until I win...at least once!