Hi Caroline. I think that famous people are more worried about the day-to-day problems, but I'm sure that it must get scary for some of them, especially as there seems to be more stalkers
about (do you know what they are?) and other people that are envious and might want (as you say) to harm them in some way.
Actually, there's a great modern Spanish film about the problems of fame (It's called 'Obra Maestra' and the director is David Trueba) - a famous actress gets kidnapped by a wannabe
director and his friend and they force her to star in their low budget film. It's a comedy, and worth seeing if you get the chance.