Old School - MLB Ump Calls From Behind Mound.....
 

I see he didn't call from a knee.......

He did have the trademark McClelland shuffle from one leg to another.

<a href="http://mlb.com/video/play.jsp?content_id=25784451">This is better - listen carefully, as Jim Joyce gives him c**p about his first pitch call!</a> :D

My 16 year-old, who'd going into his second year of umpiring, was amazed at the negative reaction from folks (not sure if it was announcers, print afterwards, or what). I'm paraphrasing, but he said something like "What do they expect them to do, cancel the game? Plus it's ST anyway!"

Never noticed it until you brought it up. Now I'll never unsee it, just like Joyce's "arms behind the back between pitches."