Fans are largely really respectful to one another outside of grounds anyway. Other than Villa/Sunderland coming to SJP, I've seen away fans from all clubs roam freely round Newcastle on a match day and get nothing but respect.
Villa? Really? Saw a small group of Villa fans in the Bodega before we played them last season. They were no bother at all.
Point proven then.
I say Villa cause the few times I was there for their visit to St James' there was ructions after the game in the walkways under the Leazes end. Worse than Sunderland.