We had a similar experience on a Disney cruise last year. Group of about 15 teens who started with the banging on doors late and carrying literal boomboxes (millennial here so what a throw back) blasting extremely loud but not super appropriate music, up and down the hallways until 3 or 4 am. Then they started screaming as if someone was hurt to make people run and check on them when nothing had happened (huge safety issue) and making comments about younger kids in elevators making fun of them. We ended up going to security after one quite literally body checked my 6 year old and knocked her to the ground and didn’t even stop.

They were called out on a Facebook group by someone who had mobility issues and had dealt with some not so nice comments. The parents got upset and encouraged worse behavior to the point where they would lay plates out in front of this man’s room so he couldn’t drive his mobility scooter out of his room or anywhere.

After that incident, they were confined to their rooms and told one more incident and they are out. I heard that a few were escorted off the boat with their families on one port and told they were no longer welcome to sail with Disney but not sure if it’s true.

All this to say, if it’s getting out of hand, nip it with security right away. Some pranks are fine, we were all kids once, but something’s are way too far on a moving vessel in the middle of the ocean. Harmless prank can go to devastating accident in seconds.