I have a feeling that we might end up in someone else's crazy table mate story.
On our last cruise, we sat at a table (just me and DW) for 6 with two other couples. Couple A was a wonderful couple! They were actually former WDW CMs who actually met while working in the parks. We hit it off with them right away and had great conversation every night of the cruise.
Couple B was a couple who was only on the cruise because they were part of a large wedding party. There was no more room at the "big" table with the rest of the wedding party so they got stuck with us. This couple didn't care about Disney at all, were only on the cruise for the wedding, were mainly disappointed that there was no casino on board, and pretty much didn't talk much to us for most of the cruise.
After night one, I told DW, "You know we're really going to freak them out on the Halloween day, right?"
This was a Halloween cruise, and DW and I do costuming and cosplay as a hobby. So, on the designated Halloween night we showed up to dinner in our Alice and Mad Hatter costumes. Couple A, predictably, loved it! Couple B looked at us like we had just beamed down from the planet Mars.
I'm sure they had plenty of stories to tell their friends about the crazy people on their cruise when they got back home...