drug prevention

“Dad, Have You Ever Smoked Pot?”
“Dad, Have You Ever Smoked Pot?”
“Dad, Have You Ever Smoked Pot?”
That question from my 13-year-old son hung in the air like – well, like smoke in a dimly-lit room, many many years ago.  I paused for what seemed like an eternity to collect my thoughts, before answering in the affirmative. Just how honest should parents be about their past?