Things get confusing when it comes to the issue of attached property. For example, let's say a tenant buys a rug he likes. When that rug is in his car on the way back to the appointment, it's personal property. He gets the rug installed in such a way that it is, arguably, affixed to the property. Who owns it?
If the rug is considered attached to the real property, the owner of that real property owns it. In that way, personal property can become attached to real property and the ownership can shift from one party to another.