RtO has pointed to many squirrely gun stories but this is the squirreliest.
Don't bring a BB gun to a gun fight.
This appears to count a a +1/2 in the good guns/bad guns balance of effects. The bad guy was certainly looking for trouble but it is not so clear what kind. Presumably he wasn't going to shoot his ex-wife and kids to death with BBs.
It is not so clear that the only way to resolve this incident was with gunfire, but it was Florida, so the shootee could not complain on that count.