Our Son Just Discovered a Rude Hand Gesture. My Husband Is Thoroughly Amused. I Am Not.

My Husband Is Thoroughly Amused. After he spends time with his dad, we're back at square one. Have a question for Care and Feeding? My 5-year-old son, "Jasper," has recently discovered flipping the bird. He loves to do it at every opportunity, which has made for some rather embarrassing situations, to put it mildly.