I wrote a short story about a grandfather that doesnt belong to his family, rather he feels he belongs with the home as he has lived there all his life, he eventually evicts his family out of his house and so on....
i dont think its very cliche, my classmates said it was unusual though.
ps. IF YOU'VE JUST SEEN AVATAR, DONT WRITE ABOUT JAKE SULLY, BECAUSE I CAN GUARANTEE U, 4000000 OTHER PEOPLE ARE GOING TO USE IT ASWELL!