Despite being La Liga leaders, Real have been pulled apart by critics over their style of play and the manner with which they've eked out results so far this season.
A fed-up Casillas barked: "This is what always happens with Real Madrid. It is the answer to everything.
"Last season, at this same time we were in a huge crisis, deadly, and now we are leaders and it's still just as bad.
"Yet, despite what people are saying, we're still up there - and on merit. There are many games, many ways to play and the important thing is that the team continues to win.