I try to squat without touching anything and then try to drip dry without using the TP (not always successful with female anatomy). I get a paper towel after hand washing to even touch the door handle. I hate it when there's no warm or any water in the sink, no hand soap and no towels, or the electric hand drier isn't working. My mom carried her own TP in a plastic baggie for such emergencies. Sometimes all those happen. Then there's the usual harried mom changing a baby's diaper in one of the sinks.