Adam and Barbara were exchanging glances the whole time. They clearly thought she was having a mental break down. Beetlejuice rolled his eyes. 

"They don't believe you, kid. Breathers don't typically take well to this kind of thing. They're gonna' have you locked up in the nut hut if you can't convince them otherwise." He sighed and looked around, making sure they were alone. "Go ahead and summon me. I'll prove it to 'em."