I'm afraid I'm not being very helpful here, but this was twenty years ago and all I can remember is that fragment. The attempts to buy it from Andy's Front Hall were back in the 80's as well. As I recall (and you know by now just how good my memory is)the two lines did not rhyme, i.e.

Your parents gave you all that they had to give
If that ain't enough, that's too damn bad.

I came up empty on Google too.