Olive green fisherman’s hat.

Okay, this is wierding me out.

Who left an olive green fisherman’s hat in my office at my house? has already denied that it’s his. It looks a lot like this:

http://www.armysurplusworld.com/product.asp?engine=BizRate&productID=13161&keyword=13161&amount=0.26

Who left their hat at my house?