I'd like to think I'd stay pretty calm. But I'm sure I'd have my own personal little breakdown "moments" too - times where I'd just go off by myself somewhere & cry! LOL! Like another poster mentioned, I also have a tendency to feed off other people's emotions, so I'd need to stay away from the overly dramatic people.
I'm a germaphobe, but I think I'd deal w/ it all better if it were just DH & I. If our kids were w/ us, I'd be a nervous wreck worrying about the germs, & I'm pretty sure I'd be having some panic attacks. I just know I'd be able to handle everything much better if I didn't also have to worry about our kids. When the cruise ship sunk off the coast of Italy, DH & I talked about how much easier we would handle that w/o also having to worry about our kids' survival. Honestly, while this hasn't made me rethink going on a cruise, it has made me rethink bringing our kids w/ us. I know I would be a complete mess worried about them - especially our younger son.
And I'd be a lot better if DH were w/ me instead of just being w/ some friends. When I tend to worry or get overly anxious about things, he's good at talking me off the ledge, so I'd definitely need him w/ me to keep me centered.
The smells would be pretty bad for me too, so I'd also deal w/ everything better if we had our own balcony - which would be my "escape". Fresh air would be a must for me, so, if we didn't have our own balcony, we'd be in the tent cities on deck.
I'd have a hard time eating anything because I'd be worried about germs & how the food was staying clean.
And I'm sure there would be times where I'd be giggly too! I'd rather be around the people who were optimistic & funny & were turning the whole thing into a big adventure.
We've had a couple of weather situations where we were out w/o power and/or water for a few days, but I haven't been in a situation where I've been stranded w/ a bunch of people. This is NOTHING like being stuck on an listing, drifting cruise ship for 5 days, but our two older kids & I were once stuck on Splash Mountain at the top in the hot sun for over two hours. When it shut down, they were able to evacuate the whole ride except for our log & 2 logs behind us due to where we were on the ride. The people in the log behind us were starting to panic & were yelling at the castmembers who constantly kept coming to check on us & hand out water bottles. In our log were two boys, my older 2 kids, me, & an older couple, & we all stayed calm. The two boys were younger than my kids & were w/o their parents (their parents did not ride & were supposed to be waiting for them at the end of the ride), & even they were fine. I was worried about getting a migraine from being in the sun & worried about one of the kids having to use the bathroom, but I wasn't panicking or anything. Our whole log stayed polite & cooperative w/ the castmembers while the people in the log behind us were getting very disgruntled. I don't know... is that indicative of how I would act in the cruise ship situation? I'd like to think so, but, again, stuck on Splash for 2 hours is nothing like being stuck on an inoperable cruise ship for 5 days.