There is the horrible example of the nice computer company that had called itself by a certain name. [1] They registered their domain in good faith and conducted business. Later, a multi-million dollar car company decided they wanted the domain for the name they choose after Datsun and lawyered up on the mom-and-pop computer company.
It’s an old site, looks like an old site, and only recently (last 5 years or so) started running ads. It has been 15 years since the lawsuit was first filed.
1: http://nissan.com/