[GonzoGOP]

-Shooting off a lock on a door (possible, I guess, but probably not as easy as Hollywood makes it look)

That was probably the only "Gun Myth" that the Mythbusters confirmed. One round from a .357 and a deadbolt lock was sufficiently damaged that a kick popped it right out of the door. Shotguns worked even better for door breaching.

Note that it wasn't the lock that gave way, it was the wood where the lock was attached. Hitting the lock with a good sized hammer would probably have a similar effect.

[CharacterCounts]

Before the seventies they dropped, but the never bled.

Today, they bleed a couple gallons.