The only injury (apart from the gun, and a severe case of Montzuma's revenge) was to someone standing behind him who received a slight cut to her forehead. The worst damage was reserved for the sidewalls (heavy gauge plywood) of the booth he was shooting from. On the right side it punched a hole straight through whilst the left side had an indentation in it.
We already have one
example of carelessness and we don't want any more.