This wasn't today...but I thought it was still kind of funny:
http://sports.espn.go.com/mlb/news/story?id=2142263
Apparently, a former member of the Marlins dared their batboy to drink a certain amount of milk in a short period of time. When the team found out, they suspended him for 6 games (roughly equivilent to what Raffy Palmeiro got for steroid use).