rejection of a rejection

I once heard an agent read a rejection he'd got from someone he rejected. The letter began with something like, " Thank you so much for your rejection but I'm afraid I'm unable to use it at this time. For that reason I will have to reject your rejection. Please don't take this personally. I receive many fine rejections every month, so I have be quite selective in the rejections I accept." It went on for a full page like that. It was hilarious. The agent was obviously amused. Did it help the w...