Imagine walking around, minding your own business and someone comes at you like this while you are all alone? I would be jumpy too!

Keira Knightley has recently admitted that she is jumpy and on edge at all times because of the occasional run in she has with a fan.

"The other day I was walking down the street and was really thinking about this book I’d been sent. You know when you’re really in another place. Somebody jumped out and went, ‘Keira Knightley!’

"I got such a shock, I couldn’t say anything because I’d been thinking about the book and this guy took incredible offence and started hurling the most amazing abuse.

"He said, ‘Who the f**k do you think you are? You’re such a c**t.’ All this, and I’m completely on my own."

And Knightley is finding it hard to recover from the encounter.

"It’s weird thing to have to deal with, not on a day-to-day basis, but it’s happened enough to make me quite jumpy."