Anyone familiar with London’s Kings Cross Station will be aware of it’s Harry Potter connections. The infamous Platform 9 and 3/4 exists at least in terms of signage and a disappearing trolley embedded in the wall. As a somewhat regular traveller through the station I never cease to be amazed at the sheer volume of visitors to the aforementioned signage and embedded trolley. At peak times there will be a queue of 30 or more far travelled people neatly corralled awaiting their turn for a photo at this shrine. The organisers helpfully provide the use of a wand to wave and a scarf to wear to give authenticity to the photo. An official is there to give guidance and assistance to project it into the air for photographic effect. So all seems good. But this is production line throughput. Probably in the order of one every 2 to 3 minutes. By my reckoning that’s 20 an hour so probably 200 or so each day. Assuming even an optimistic changing of the scarf once a day for laundry purposes, that does raise a question on , shall we politely say freshness. Now as bodily parts go necks are probably fairly clean, but would you wear an item of clothing that 200 others have shared with you that day? However there may be a missing factor, maybe the swish of the wand delivers the same results as a 40 degree non-Bio wash. Who am I to question this?