I guess for the same reason most Cub fans hate Jim Edmonds. Barrett appears to be real cocky, and the whole stand off with Oswalt was stupid. The Cubs pitchers were plunking hitters left and right last year and Barrett gets upset because Oswalt did the same thing. He was already mad at Oswalt, because of an incident of Oswalt beaning Vidro (when him and Barrett were teamates in Montreal, I also think it was a bad beaning like at his head or he got hurt pretty bad from it). I saw on BBTN a week or so ago where Oswalt has issues with Cliff Floyd, where Floyd hit a HR of him the next time Roy hit him, and than him again later, so Cliff said you do that again and there's going to be some problems, so the next time they face Cliff hit another home run :lol:. In conclusion Roy Oswalt is an a-hole.