Heh, I don't think big corporate cares. They'll sue you anyway.. Look at Chik Fil A.. They sued some guy because he was a health food nut selling shirts that said "Eat More Kale".. Apparently Chick-Fil-A thinks they own the rights to a slogan that suggests people eat more of something.
LOL. Can you imagine? Probably like 6 people in the world actually bought one of those silly shirts, but they gots ta get their cut, if you don't have it, they'll take it out of your.... behind.
No, I'm not joking about the Kale thing,
http://articles.nydailynews.com/2011-11-30/news/30460751_1_kale-t-shirts-phrase