I think the biggest things are cancellations...making sure everyone knows the rules up front and agree to them...make sure you have contingencies, if the group is large enough, someone will back out...
Having said that, I´m going on a liveaboard in the red sea with a whole group of friends, we´ve chartered the boat so it´s only people who are "vouched for" (I only know 3 or for of them)...I´ve done three liveaboards before and spending a week 24/7 with people you don´t know before you board may sound a bit intimidating but I´ve had no issues and only one or two people have had "disagreements"...
It does tend to require a bit self-control though. Always ask yourself if what you are about to say is likely to change the behaviour that annoys you and if the person seems open to change, if the answer is no then go somewhere else and cool off...
Having said that, I´m going on a liveaboard in the red sea with a whole group of friends, we´ve chartered the boat so it´s only people who are "vouched for" (I only know 3 or for of them)...I´ve done three liveaboards before and spending a week 24/7 with people you don´t know before you board may sound a bit intimidating but I´ve had no issues and only one or two people have had "disagreements"...
It does tend to require a bit self-control though. Always ask yourself if what you are about to say is likely to change the behaviour that annoys you and if the person seems open to change, if the answer is no then go somewhere else and cool off...