We had a Birds of a Feather Session at the last PerlCon. It was nothing formal, just a note on the BOF Board that there would be a table of Monks in the upstairs bar starting at 1800. I don't recall how many Monks showed up over the next couple of hours, thirty+ as I recall.
cLive;) posted some pictures afterwards, I don't have the URL immediately to hand, though.
--Update: Corrected Typoes
----
I Go Back to Sleep, Now.
OGB