Thinking about ghost who typically hates Halloween, right?
Shocking, considering the guy wears a Halloween decoration everyday, but he hates all the social interaction. Strangers knocking on his door, begging for sweets. He'd rather decorate for a day or two, enjoy his night alone, and call it a day.
So why is he going all-out to try and attract the most trick-or-treaters this year?
Because you're participating this year. You, the single parent across the street who he maybe-kinda wants to invite on a date but hasn't figured out how yet. Thus...decorating. anything to get a conversation started, right?
"Alright sweetie, go ahead and knock," ghost hears your voice across the door. He's been hovering since he spotted you and your daughter three houses down. Three knocks, and he opens the door–
"Trick or treat!!! Guess what I am!!" Your little one squeals, holding her bucket decorated like an acorn up to him.
"Sweetie, you need to wait for treats first–" you try to tell her, knowing she'll get tok disappointed and forget to get candy if the stranger can't guess.
Ghost takes one look at her and nods "proper weevil, innit. Good costume, kid."
"Yes!!! Yes I'm a weevil! You got it right!!" She yells, hopping in place in pure joy, cheeks no-doubt hurting from the force of her smile. Finally, she looks around at his house, then back up at you "can I go look at the big skeleton?"
"Yes, yes, go ahead." You smile at her, checking that no one's waiting. Thin about having little ones is you always beat the Halloween rush. Then, you smile at ghost "thank you. No one's been able to guess her costume, and she was about ready to quit."
"'S a good costume," ghost nods to himself, "she a fan of bugs?"
"Oh, it's all she talks about!" You laugh, that fond laugh all parents have for their children "she's in love with all things crawly."
"....oi've got beetles, if she wants to see 'em."
Which is how a bowl with a hastily scrawled "take one" is left on the porch, meanwhile your daughter is about ready to explode when ghost lets her hold Betty, his Hercules beetle.
"You wouldn't mind if she comes back, would you?" You whisper, both of you stood back while she stares in awe at his centipede enclosure "you're the first person able to keep up with her bug talk."
Ghost smiles. May not be the dinner date he was expecting, but somehow it's better.