I let her shoot with my 350D when I was on the water, for 5 minutes.
Guess what happened?
The focus point ended up in the corner segment so everytime I click the shutter the center never focus, and the focus mode in "AI Servo". it scared me &#$&^%$&*&% when I first got back my camera. And some more, she immediately went to pirtate boat so every picture I shot focused on the girl behind her.