Palm Pilots on the field

[Forest Ump]

I was doing a Pony game as PU earlier in the season. I hear a cell phone go off and I look down the first base line and the coach is talking away. I let it go for a couple of pitches but I'm keeping my eye on the guy. He's looking down at the ground and talking. His head is completely out of the game as he is talking. I called time and start walking towards him. I signal with my right hand a phone to my ear and shake my head no (new mechanic maybe). I tell the guy to put the phone away and he says a few more things and hangs up. He says "Is that a new rule?” I said it ought to be but the reason I did it is because I didn't want to see you get clobbered by a line drive in the noggin. After that, I started using "no cell phones" during my plate conference.