Well, that's how art works. For example, you can take a toilet seat you have bought, and merely re-paint it and add whatever decorations you want, and it's your art, despite the object being sold/made by somebody else.
If you think a normal toilet seat constitutes as art, I'm pretty sure I don't have to have this discussion with you.
"OH NO SOMEONE BOUGHT A BLANK CANVAS I MADE IN MY WORKSHOP AND DID A PAINTING ON IT - COPYRIGHT INFRINGEMENT!"
I would love to hear one solid argument, what defies "art". It's almost as infinite question as "What is love" or "What's life's meaning?". Hence I shan't bother you with it, and I can agree that mayhabs it is indeed a subject that is not to be argued of, but telling that my view is stupid just because I do not have the same defination of art in my mind is plain wrong.
As for the toilet seat thing, I drew that explanation from 1920's, so it's been around for a while. What I meant with decorating however, would be something like this.
Welcome to the world of modern art, kind sir/madam. I wish no quarrel with you.
You are thoroughly incorrect.
Not really. At the moment you buy the product, you are free to use it to whatever means of art you wish, were it a plastic cup or a toilet seat, if you make whatever art out of it, you can claim it as your own made.
If what you'd be claiming would be true, then every single artist could be argued to use theft; Afterall, most painters buy their materials, rather than making them themselves. This way, we'd have to stamp trademarks all over the paintng, to verify what colour and mixture is used in each part. But, we do not.
I'm not entirely sure if you understood me wrong, though.