I had one my first year umpiring 11 years ago. Runners on 1st and 2nd. R2 and R1 were attempting the double steal. Line drive hit right at F6. Catches the line drive for out 1. Flipped the ball to F4 standing by second (probably for the steal). F4 throws to F3 for the third out. I was dumbfounded at the onset until I realized what had just happened. I then had to explain to the offensive coach. He walked away shaking his head yelling "you need to freeze on line drives."