I have caused consternation in the past with the problem of "two nations divided by a common language" as Winston Churchill said.

I once told my US friend Joannie,"I will knock you up in the morning",meaning I would give her an early morning call.

I told my 6 year old daughter to stop "rooting about in a drawer". She was rummaging in it,but Joannie gave me a strange look.

My Canadian mate David collapsed laughing when I said I had been "working like a Trojan for the past week". It means working hard to us.

Lastly, when the Australian Grand Prix took place some years ago a team was sponsored by Durex,which turned out to be what Aussies call Scotch Tape or Sellotape.The Durex logo was blanked out and replaced by LRI (London Rubber Industries).