"What about rule 13?" was obviously the first thought I had when I read her suggestion. I expected her to say something about it since she was trying to sound all smart but I guess not.
Also, after assuming that there are AT LEAST 4 participants, and seeing 3 people rushing at him before her, she immediately assumed that she had seen all the participants.
If the character was supposed to be stupid, I wound understand, but ugh...?