venn diagrams

I just had lunch with Elly and was trying to remember this venn diagram that Keri Smith made that I really liked.  So, I immediately did a little search for it when I got home and came across these two that are kind of great, but not by Keri Smith.  (I think perhaps I just like the clarity of the venn diagram and also any use of the word hooray!  and also boy paradox of course does not include r and c.)

and here's the one by keri smith: