When they kept winning the league.... "This is good for football's sake!. Another vintage year for Manchester United!. I hope they double it up with the FA Cup now!"*
When we won four in a row... "This getting boring now. Can someone else please win it for a change?"
* In 1999 the national news made the European Cup Final a main news item, presenting it as of they were all troops going out to war and everyone in the land wanted them to win. So yep, even the media pushed this further.