How to teach your kid to speak Mandarin

Want to teach your kid to speak Mandarin? Don't bother with lessons and fancy books. Just carry on long involved conversations with cab drivers and wait staff in Mandarin and refuse to tell the kid what you're talking about. Before you can even say 'Ni Hou' they'll suddenly start saying phrases that you previously had to gouge out of them with threats of bodily harm... Passive aggressive mom, 1; stubborn kid, 0.