Only when he rolls around in the mud, but he loves baths, so it works out.

[ahahaha that's a question. Mabel peels the wrapper off her cupcake awkwardly.] Uhhhhh.... Well, yes and no? There's more people to have bad things happen to when Wonderland gets all awful, but it makes everything feel normal when they're here too. Like if Wendy were here, we'd have everyone from the Shack and it'd be like we never left Gravity Falls.