"I hate the Swiss, bloody nuetrals". This was the last line a 60s TV sketch I remember, with John Cleese.

A UK man and a German, who had been in conversation, and trying to find common ground, discovered that both of them had not seen each others countries but had both bombed them, during WW2. Eventually they both agreed to blame the Swiss.

With apoligies to any Swiss readers but Larry has a good point.