Hamilton has crashed at Monaco once and so has Alonso. Even the great Schumacher has crashed there. Come to think of it hasn't Jenson had a crash there where he was nearly very badly injured? Button also crashed out of the 2002 race, and the following year did not start due to a crash the previous day. All apart from Vettel are Monaco winners I must remind you.. So no Vettel and Hamilton don't tend to bang the walls, just like Jenson is not prone to forgetting to brake coming out of the tunnel.