She says she wrecked her bike. Now, I don't know about you, but that much makes the hair stand up on the back of my neck already. In case you haven't thought much about it, there's a distinct difference between boys and girls. I seem to remember a time or three when I slammed the old egg sack down on the frame of a bike, but after all, they do just hang out there. Boys were designed by some joker who maybe thought that we should experience immediate painful consequences for being oafish.
Girls are different.
All their delicate equipment is tucked safely inside their bodies. Maybe it's evolution or maybe it's a creator that felt like being extra kind to the cute half of the race, but in any case, girls are designed to avoid that kind of damage. In other words, she suspended her own judgment in the face of the majority. As it turned out, though, Joan's strong impression was correct. The girl had been brutally raped by a neighbor.