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It is one of our greatest secrets. There is only one place in the world that pineapples can be grown and that is Glasgow. We have to export them on the sly to exotic sundrenched countries so that they can pretend they are worth something to the world! ;0)

That explains why the skin of those things has a sort of plaid-like design to it.
I had always wondered about that little detail... You Scotts are a sly bunch.