Fumbles

[Mike710]

I trying to find a way to create fumbles in my solitaire league. I've been placing a weighted football on the player's base, if the football falls off the ballcarrier's base during a play before the board is stopped then its a fumble and any unengaged player is then pivoted toward the ball. Whoever gets there first has possession. The Problem is fumbles occur too often on about half of the plays especially if there is a long gain. I'd like to hear how others incorporate fumbles in their games.

Thanks