Renee Aubin's meeting-planning challenges are not the same as yours. Aubin is the manager of the convention division for Lions Club International, a fraternal organization. The Lions Club strives to serve people with sight challenges, so it's probably not surprising that 5 percent of the attendees at its major annual meeting are blind. With at least 15,000 attendees in town, that means several hundred guide dogs will be in attendance, too. No, it's not your everyday meeting.