Alongside a respect for philosophically informed formal work and an interest in all things Polish, Jan Woleński and I share a profound admiration for Leśniewski's oeuvre. As Jan once told me, you can work on Leśniewski for your whole life. Indeed so. Eighteen years after I first met him, on a morning in late March at a bus stop in Sucha Bezkidzka, Southern Poland, here's a story about the axioms of Leśniewski's mereology, and Tarski's complicated role in it.