A little levity never hurts...

My writer-cousin cracks me up.

'I think I'm going to use my book rejection letters as a template for refusing a date: "Thank you for [asking] me. Unfortunately I don't feel I'm quite the right [person] for you. I'm regretfully going to pass. Best of luck. Due to the volume of [people asking me out] I receive, I'm unable to provide a further explanation of my decision."'