Well we can't assume no preconceived notions. We have to assume that everybody is their story books self otherwise RH and LJ might be in prison for putting babies in burlap sack and beating them against rocks.
But then if we assume that RH behavior seems entirely out of character.
The test tells you to abandon all preconceived notions, if you act as if RH is the great thief robbing the rich and giving to the poor, you're doing it wrong.
I did Maid Marion, Little John, The sheriff, Robin hood and the answer was about spot on.
If I switched LJ and MM it was okay. Although I tend to think of myself as adventurous.
I can't even conceive of putting MM after RH though. Assuming no preconceived notions he just acted like a total jerk.