Lol he was sued for plagurism. But the courts whent in his favour. We can now steal ideas, just as long as you don't write a book about a boy called Larry Hotter who finds out he is a wiserd and goes to Hognotts school of witchcraft, you should be fine
haha,, well it will be hard to resist the temptation but I'll try. what about that book called Barry Trotter? wasn't that like plagurism??
You have to be very careful when parodying though. A Russian writer tried something similar with a girl going to a Hogwarts type school and got sued successfully.