The Arnold Air Society of our AFROTC detach shot cannon at McNaspy in 60s. We had one minor incident. After one score an unnamed cadet was a tad early in firing the beast after a Cajun score. One of our players was still in back of end zone when it discharged. Bout knocked him down. When he recovered he was not happy. Threatened us with bodily harm. Until he and we both realized we still had a cannon. And it reloaded with gas quickly.
It’s called detente.
Good times.