Walter Contato knew potential when he saw it. Like an inordinate number of Italians before and after him, this successful Milan-born businessman took holidays in the sometimes-too-charming-for-words (as in, how-the-hell-are-we-gonna-get-the-car-through-these-narrow-Medieval-streets?!?? levels of charming) Lake Garda town of Sirmione. As an inordinate number of successful white businessmen seem to want to still do, Contato eventually decided…