Still, if you do not defend your home ground you will lose the legal right to do so.
Recently there was a lady on the Oregon Coast that was owned by by the last name Buch. She called herself Starr and opened up a coffee shop.
The Seattle coffee nazis hired lawyers to shut her down and rightly so. Spelled differently, but sounded the same and infringed on the trademark.
Mike Rowe did it more or less as a joke but he knew it was close enough for comparison. Bill thought so too.