Hmm, the DUII folks must really be waiting for those self-driving cars. But: neither cars nor booze are deliberately designed to put holes in things, and it would be tough to drive a car through classrooms.
Another “but”, as John Stewart pointed the over 100 shootings in just one week, it is NOT just a matter of controlling the “mental cases” to get at the real consequences of too ready access to firearms.
Which, back in 1967, it was interesting that the Army started locking up weapons in the base camp barracks because too many folks were getting shot by our own weapons, and that was in Viet Nam!!