Wait, there's an upside. I think you've got PEL's solved and haven't noticed it yet.

If each session-goer brings a duster for self and guest, then you've got PEL's beat. "Sir, this is no session, it's a work-bee! We're dusting, can't you see? We only wish that one bloke raving on in the corner would shut up and do a turn on the cobwebs!"

~S~