Who's Afraid of the Big Purple Monkey?

A few weeks ago we took Arielle to her first school friend's birthday party at Chucky Cheese's Pizza. When Arielle saw the big purple Monkey playing in the band on stage (they are animated and actually move) she was very afraid. Today, Arielle suddenly remembered the monkey and kept telling me over and over again that big purple monkeys are pretend and they don't go to real peoples' houses. I saw her eyes start to tear up and she started to get a look of fear but it soon faded as she reassured herself that big purple monkeys aren't real. I'm so happy that she can recognize the difference between reality and imaginary at such a young age.