During my playing career, I was definitely a pack a day guy. I might go through 10-15 during every nine inning game. Cigarettes? No. Chewing gum.  I wasn’t alone. Look around the league and you’ll see endless examples of dudes chomping while manning their respective positions. It’s just habit for us. For me, it actually goes back even farther. I was thumbing through an old yearbook the other day while cleaning out my storage room and came across a girl who signed my yearbook (sigh) busting my chops for snapping and popping my gum at my desk. It wasn’t…