Thanks for the reply.

I know ideas are worth €0, but it's a bit harsh to just tell him that right away.

>A patent won't get you customers.

Yes, but he's scared that, once it's online, others will want to copy-cat and capture the market. And I understand his fear, but I don't know enough about patents and legalese to relay his fears.

>Both your fears are valid. Trust your gut. My suggestion: don't start a company with this friend.

Thanks :) But I like this friend and want to start a company with him, just not the way he wants to (throwing money around without having even a prototype)