#VennDiagram omg the old torments come back... though I have to say sets and subsets came naturally to me at first, as did fractions, believe it or not, the flipping of numerators and dominators (wait, not) - denominators! - math was logical and true and useful, but Mrs. Hoffman in first grade somehow spanked all the love of numbers right out of me. But sets and subsets (and fractions!) appealed to me in ways I had entirely forgotten until today, when you mentioned chickens as one unit, a subset of the menagerio of Stacey's pets....