Right, so my friend and I were talking and we accidentally came up with a really (in our opinion) awesome headcanon.
Since Ghastly died before Skul could pay his tab, he thought about donating to a school for hopeful tailors. Instead, he bought one of those skeleton models, dressed it in a suit and told Val that a small society of his worshippers built the statue in his honour. Which gave him an idea.
So he bought 6 more skeletons (Vex, Rue, Bespoke, Shudder, Cain and Gordon) and every Halloween he gives Val the day off so he can go out without his façade and uses his air magic to make them all dance. He calls his little group the Dancing Dead Men plus Woman. Surprisingly, he’s quite popular, especially with the ladies. Once Val finds out, she never lets him live it down. Ravel Skeleton, however, has to stay at home and face the corner to think about what he done.
On the days Skul is bored, he takes Revel Skeleton’s head and used the other skeletons to play catch with it while Ravel runs around trying to catch it. All the while shouting ‘IF YOU DON’T LIKE PIGGY-IN-THE-MIDDLE, YOU SHOULDN’T HAVE KILLED OUR FRIENDS!!’