ptk> what if no one is attending?

obvious answer.

run to the nearest walmart to get a bullhorn, and wave in random people off the street (use a "free stuff inside!" cardboard sign 'round the neck, like you see in the movies -- it always works), and crawl thru the powerpoint deck anyway. practice makes perfect.

when the people look like they were going to fall asleep, you could scrounge around the laptop and show whatever random mkv blockbuster that PC torrented for the aeroplane ride there.

maybe afterwards give the leftover donuts to the janitor and other staff in the building to take home.

also, return the bullhorn for a refund at the end of the day (walmart in every city on the schedule, so why tie up your capital when you can rent it for free?).

at least, that's what I'd do.

really!