If you smoke the black lotus pipe, you have to take a poison test (using your toughness). Not inhaling the smoke into your lungs would give you a bonus. So Julian would almost certainly be unaffected, but Max would be more at risk.
Failing a poison test for one dose of black lotus just makes you 'drowsy,' though you also have to pass a WP test or get d6 insanity points! Which would most likely mean addiction.
karl im not sure the man would let us just go hide
Admund, Mortus and Ragni stayed outside the building.
Also, Karl: the convention sounds great! Like spending a week at Soth's gaming club.