I have never understood the disable right click. Protecting your assets is important, yes, but hindering a user’s experience shouldn’t be part of it. If you plan on selling images through your website, then by all means toss a watermark on them. If you’re displaying things that you’ve previously done as part of a portfolio then let your work speak for itself and don’t put any watermark on it.
If somebody wants to steal your image and claim it as their own you can try to be happy that you’ve created a body of work good enough to steal from. If you actually *find* a person stealing from you, deal with it on a case by case basis.