More a general early memory, but I used to love watching Michael Turner run and bounce the footy, I'm pretty sure he'd always bounce it left handed, though he was a right footer. And as you do, whenever I bounced a footy, I bounced with my left hand.
And another one around Cam Mooney specifically, it was round 10 v St Kilda in 2007. I was overseas for the Richmond shellacking and I think the Saints game was one of the first I'd seen getting back. But watching us play that night, fast and direct movement of the ball and having Moons as a target leading aggressively up the midde of the ground, I remember saying to some people that I coudn't see how we were going to lose another game for the year. Well we lost one, not the big one, fortunately.
For negatives, it's the leaving/losing of players at crucial times that may have cost us some glory. Williams, Bolton, Toohey (& Hafey) to Sydney in 1986, Bairstow & Ablett's premature retirements & comebacks in the early 90s, O'Reilly to Freo, Stoneham's broken leg, Steven King & Nathan Ablett (I think both would have been handy in 2008 - at least Nathan could kick straight), and Gary Jnr. There's probably a few I've missed.