OOOOHHHHH!!! OOHHH! I got one! “Slingshot” vs. “Sling” David slew Goliath with a SLING, not a SLINGSHOT. He shot a stone with, or from, a sling. The slingshot wasn’t invented until we pretty much had rubber compounds after the 1840’s. Tightens my jaws every time, and lets me think the person don’t know crap about anything if they can’t get this simple thing right.