Personally, I feel that anyone that can't deal with a resume "blank spot" isn't really serious about finding an actual person: blank spots happen, it's just that some people stay in a job they hate, so that both the job and person suffer, rather than taking a step back.
I'd explore why doing something you're interested in, that helps you get on a path you're interested in, is a "shot to your pride" rather than what it is: an opportunity that you'd actually enjoy, and would help you down a path you say you're interested in.
I agree with you on the "blank spot" issue the more I think about it. I don't currently have any on my resume so adding one by my own choosing in order to give greater focus to my career path and passion for what I do should be an easy explanation.
As for my pride, when I wrote that comment I had in mind doing an unpaid internship alongside recent college graduates. I'd inevitably feel old in that scenario but you're right, it would help me determine if that path is still one I want to go down and is low-risk/commitment. Thank you for the feedback Dave.
I'd explore why doing something you're interested in, that helps you get on a path you're interested in, is a "shot to your pride" rather than what it is: an opportunity that you'd actually enjoy, and would help you down a path you say you're interested in.