For years my husband denied he was an aggresive driver. That changed one day when we were out for a drive with our three-year old son, Matthew.

Seeing a teaching opportunity, I asked Matthew about traffic lights.

"What does a red light mean?" I asked.

"Stop."

"Good. How about green?"

"Go."

"And yellow?" I conintued.

In his best deep-voice impression of Daddy, Matthew bellowed. . . .

. . .   "Hang on!"