My DS (who recently turned six) has been given to obsessions pretty much since he was born. First it was oscillating fans (which he was obsessed with even before he could talk - he used to make a puffing noise whenever he spotted one); then it was churches (why???????); then it was Dysons; then it was textile mills; and now it's cathedrals. And when I say obsessed, I mean obsessed to the exclusion of all else.
Here is a typical conversation between DS and me:
Me: "DS, would you like toast with your beans?"
DS: "Did you know that Alec Clifton Taylor says that Peterborough Cathedral's West Front is ill-thought out?"
[He has just bought Alec CT's book on English Cathedrals, and is taking great delight in disagreeing with ACT on pretty much everything]
All his pictures are of textile mills and cathedrals (and they are very, very detailed - when he's not reading, he's drawing).
Is it a boy thing? Does anyone else's DC have weird, all-consuming obsessions...(Please say yes, someone!) It's a bit tedious, as he really doesn't seem to take in anything unless it relates to spinning jennies or West Front rose windows...