No offense to Kohler — a company whose products I genuinely respect — but its commercial entitled “Tresham” shows the strangest ostensibly-“cute” family dynamics on TV. It’s more a PSA for lockable bathroom doors than it is an ad for bathroom plumbing. Imagined logline: Two kids urinate simultaneously in a Kohler toilet while nude Mom enjoys a soak in a Kohler bathtub mere feet away. As the commercial starts, the two boys open the door just wide enough to scope out the situation and their mother inside, who is luxuriating in a bubble bath — perhaps contemplating the mystery of that odd latch mechanism on the door. (“There must be a way to ensure my privacy! Is there something else one should do to a bathroom door after closing it?”) And as the rugrats breach Mommy’s Spa Weeknight, the woman doesn’t even check to make sure her bobbly...