I wonder if they could put together an array of air jets to deflect projectiles away from the stands, that could be controlled by sensors sensitive enough to react in time...
I remember being lambasted on this board for having a gif of a chihuahua humping a stuffed animal as my avatar, because this was a "family site". Good times.
I know he abandoned switch hitting and was going purely from the left side, I think it happened last year, but at some point he obviously went back to switching, not sure when that was. Maybe it was part of the turnaround.