Nope. Sorry. It isn’t a free world. You can’t just do whatever you like. There are laws, and rules. For good reasons. In less interesting news, there’s a whole new page of Terms & Conditions on this here site. I won’t bore you with the tedious details for the whys etc.
Here’s one example for the why, what, how, etc. from the fine, feisty, fellow-ginger Forever Amber:
Hi, I’m Amber. I’m one of the directors of Hot Igloo Productions Ltd: we’re an internet marketing and web design business, which was incorporated in 2004 and has been trading ever since. I’m basically a silent parter (or I have been until now) so you probably won’t recognise my name, but my husband/business partner, Terry Miaoulis, has been in touch with you via email and on Facebook, so you may well know his.
Even if you don’t recognise our names, though, I’m sure you’ll recognise the name of our business: Hot Igloo. Sound familiar at all? It should do, because you launched your own rival business two months ago, using exactly the same name.