"Your mind is on vacation and your mouth is working overtime"

Mose Allison(SP?) one of the ecent Jazz Greats.
I think it's from a song called "Mercy" or "Everybody Crying Mercy"
I'm going back to my late teens so I'm thinking mid 60's I may be mixing it with another song that was off ther same record album, maybe some one with a better memory can make right of this.

Barry