OK I may be missing something, but what's up with the pantless NPCs of late?

First one I noticed was Gein Burger, standing there one day with no pants (or underwear) on 😮 Backed slowly out of Gein. Strange. On another day I went in and he was there with no clothes on at all...and again today.

So far...just a dirty - possibly senile - old man, which I always suspected anyway

Then today I see Tangy Morpork cooking 'al fresco'. Now THAT I have not seen before 😯 She's always been impeccably behaved...

So I undertake a test. I go to the Clam and sure enough....even Slurpie Sorbet has lost his pants, though thankfully that's all he's lost and he's wearing underwear 😐

/me demands action by the HPD to find the stealer of the poor defenceless NPCs clothes! 😳

I realise these are pranks but fully nude NPCs lol - whatever next? 😕