Have Alfred and the Kents ever met?

Have Alfred and the Ma and Pa Kent ever met? I'd think if they did they would talk about how they each raised their respective heroes only for them to put themselves in harms way everyday?

Not a battle mate.

@stormshadow_x: Yeah, in Batman/Superman Issue 3. But, the conversation was just between Alfred and John.

Thanks. I'll go back and check that out.

If there's any other examples, I'd like to see 'em, boys and girls.