Halloween - Am I a grinch?

[texas*princess]

I think I like the packing peanuts idea

And you could say "this is for when you move out of the dorm after Christmas!"

[CutiePie2000]

Give the uncostumed ones raisins or sunflower seeds. LOL!

You could also have a sign that says: "No costume, no candy, no whining", which lends a nod to "No shirt, no shoes, no service".

[honeychile]

When I was first married, we lived in a high-traffic area for trick or treaters. I don't believe in Halloween, so I had the lights out, and worked on something else (Ex always had to work the few hours of Halloween). Most of the kids understood that a porchlight turned off meant keep going.

But not one group! This little pack of teens banged on the door with serious verocity, and two of them yelled (non-simultaneously) "Open up the f***ing door! It's f***ing trick or treat!" I felt like throwing cans of soup at them!

So, in a phrase, no, you're not a grinch at all!