Using our Chinese phrases

Matt's Chinese is coming along quite well. One phrase he learned how to say is "climb a mountain". So we are at a park in the neighborhood and an elderly Chinese couple and a 3 year old boy come to talk with us...in Chinese. We establish that we are American, have 3 children, their ages...and we are actually understable. At the park there is a huge hill...pretty much like a verticle wall. Matt, anxious to show off his Chinese, tells Mia to go climb the hill so that he can use his phrase. Mia is scaling (like spiderman) this verticle hill... only to have the couple run over to the hill fearful that she is going to fall...while we stand back and watch. The man quickly calls Mia down, speaking in Chinese and motioning she might get hurt. I guess we just didn't think of her falling off the wall like hill. It did give me the opportunity to practice how to say "to fall" though. Nothing like putting our children in danger's way, just to practice our Chinese. I guess you could say we are giving it our all to learn the language.