I watched that the other day, while the 3-1 pitch was a ball. The pitch he was called out on was border line. However I think that Lawrie was still upset about the call before. Unfortunately for him, the helmet bounced up and struck the Ump. I'm sure it was unintentional and four games is a bit much, but thats the way the helmet bounces.
^ That was strange.
Watched a clip of Brett Lawrie bouncing his batting helmet off the ump.
They said "during the Jays-Rays game...." and all I could think was "well you can call me Ray, or you can call me Jay, but you doesn't have to call me Mister Johnson...."