Drop kick

[BigFarns]

Has anyone ever seen a drop kick? Why is it still in the rule book? I've only seen one in my life and it was on accident. It was a preseason game for the old Browns (before they moved) and the punter almost missed the ball and the tip touched the ground before he kicked it. I believe the ball actually sailed out of the endzone and I I think should have been counted as a missed field goal and not a simple touchback. The officials missed it and the game went on. Later someone on ESPN noticed it and said "well it's preseason for the refs too."

Anyhow...just curious if anyone else has seen a drop kick at any level of play.