I think you might find that London Irish RFC dislike Bath far more than Leicester simply because as every time the unfortunate "Not-Nots" get relegated Bath regularly move in and filch their best players - Joe Cokanasiga being the latest in quite a list.It's quite an achievement to be more disliked than Leicester!
With Worcester looking handy this season the "Irish" might be in peril of the drop again which means the Barf vultures will be circling again.