I have met one message-boarding-Promenader in the arena a few times but I think that came about through conversation rather than setting it up. I am planning to be in the arena for the two orchestral Proms on Friday (Haitink and Manze), Haitink on Saturday and Dausgaard on Monday. I shall be in the hall on Sunday(Layton) but otherwise placed. If you see a balding, whitehaired, tubby old man in t-shirt and casual trousers/jeans standing roughly a metre or two in front of the mat with the Radio 3 logo (the "arid fountain" as I heard it described) feel free to introduce yourself: you might have found me. I have been mistaken in the queues for Thomas Allen and Daniel Barenboim not that my friends think that true.