Maybe he's just trying to be nice.
5 seconds sound clip from the Home Alone (1990) movie soundboard.
You can hear this line at 00:06:28 in the Blu-ray version of the movie.
Quote context
[...]
- Been hiding out in this neighborhood ever since.
- Well, if he's the Shovel Slayer, how come the cops don't arrest him?
- Now it'll just be a matter of time before he does it again.
- He walks up and down the streets every night... salting the sidewalks.
- Maybe he's just trying to be nice.
- No way.
- Wow.
- Mummies.
[...]