Ah'm an evil Scotsman

Depends on the pub, but most are okay. Your typical boozer on the way back to the city centre won't be a problem, neither will the places that are typical pre match meeting points; Counting House, Crystal Palace, Iron Horse etc But, if its city centre, semi-trendy looking and already busy and full of their regular customers, don't be suprised if the guy on the door finds a reason not to let you in. They often say no to football colours though. O'Neills are particularly bad for that.