Good stuff
Quite a random little skit, but I can see the plot being about this misunderstood, if not entirely friendly little ghost. The only similarity to characters like Casper end with the look of the thing, but it works well, with a little malicious mischief thrown in there for good measure.
Some of the faces you've drawn look really weird, especially the nose of the kid who tried to throw the toilet paper, but got his own comeuppance. I liked that touch, I might have to use it myself against trick or treaters who infest my front garden on any other night than October 31st.
Now that you've got this start, you could actually take it further - edit this piece down to about 20-30s for the intro and then go with a series about a group of Ghosts, Ghouls and other such Hallowe'en fixtures, like Vampires, Mummies, Werewolves and anything else that comes to mind to fit the bill.
I'm sure you could come up with some sort of series based around them. The joy about this is that they don't have to be released just at Halowe'en, you can release all year and come up with a Halowe'en special, which is the big piece of the year for you.
Might need some voice acting if you're going down that route though.
[Review Request Club]