Hypothetical scenario: I want to create a couple images that parody the famous slogan "got milk?"
The first will depict a famously creepy person next to a glass of milk. The image isn't meant to be denigrating. Rather, it illustrates the simple fact that even creepy people can drink milk.
The second image features a caricature of Bill Gates next to a glass of milk, illustrating the fact that much of the milk produced in the U.S. is now contaminated with genetically modified food, pesticides, etc.
Could I be sued for such use?
It seems like fair use to me, but the article I linked to cites a case where a lawsuit was threatened against PETA for using an image with the slogan "Got pus?" in an anti-dairy campaign. My image making a statement on GMO could be construed as anti-dairy.
If there's a risk of being sued, would I be safe if I changed the words to something like "have milk" or "got anything else"?
I may have answered my own question; I just discovered that PETA's "Got pus" campaign is still active.