Left vs right hand thread wheel studs.

I remember my first episode like it happened yesterday. The high school QB was driving his fathers 69 Polara and had a flat on the left front. The whole team tried to loosen and one of them managed to shear a stud off. I walked up and noticed the L on the center of the stud. Told them to try and go the opposite way and Shazam! Was never a Jock but got some new friends that day!