On our last cruise through the Panama Canal there was another ‘service dog’ on board. It was a smaller terrier type and several times walking the deck or out at the pool it lunged and barked at our SD. This was to the point we had to report it, because if my daughters dog becomes incapacitated, she’s lost her medical device. This guest was also feeding him under the table every night at dinner. On formal night, right by Guest Services, we were walked past the Photography backdrop to the elevators and this dog lunged after ours again, just walking past. Probably 50 people saw this happen. Our SD never reacted at all, but these type of people make those of us with true service animals completely scrutinized all the time. At the end of the day, animals are animals and they aren’t perfect, and ours will certainly on occasion grab a crumb off the floor if he thinks he can get away with it, and if he’s separated from my daughter multiple times in a short period (say at Disney, if she’s riding rides), he will voice his displeasure of the separation with one bark. He’ll be 7 in July and he’s barked 6 times since have had him - that’s it.
We prepare long ahead of time for cruising, using a potty box at home for 3 months pre cruise so it becomes very normal for him to go in a small box. He is in a strict food/water schedule so we know when he pees/poops - after breakfast and dinner and pees mid day and bedtime. This allows us to plan activities/excursions based on his schedule and knowing when his breaks are. He does not get any food in between because the potty schedule is set.
it is a lot of work to travel with a SD, but without him, there are so many things we would never be able to do.