As a freelance copywriter, I often take on freelance jobs for advertising agencies.
I contacted one recently to offer my services (a small local agency) and we had a Skype call to discuss further.
He asked if he could see the kinds of briefs I'd been working to, so that he could see how I'd interpreted them (e.g. briefs that had been sent to me by other advertising agencies).
I can see where he's coming from, but I feel it would be a little disrespectful for me to send over briefs from my other clients, seeing as they are basically all in competition with each other.
Am I right in thinking I should avoid doing this?