wiffle ball=tantrum

SJ, Bob and some neighbor kids were playing a friendly game of wiffle ball.  All was going well until SJ didn't get Bob out at home.  You would have thought SJ just lost the World Series.  He starts yelling and throws the wiffle bat.  I had to have him come in the house for a time out to calm down.  He is just continually crying saying this is not fair and that Bob was out.  After about 10 minutes, he calmed down and we tried to explain to him why Bob was safe.  I also tried to let him know that the other kids may get scared when he yells like that.  I worry sometimes that these tantrums will not allow him to form strong friendships.  So much for a quiet Mother's Day.