Drives me mad - she doesn't just like things she becomes utterly obsessive - and talks endlessly about it - Pokamon, Moshi Monsters, Football, Minecraft...
Currently it's Hamsters - she has save up money to buy one (I haven't said she can) she's been online for days researching them and even got herself a little cage (on the pretence of it being for the guinea pig when she had it in her room)
I love the little loony madly but she's been talking hamster facts for 2 days straight and I am going mad!