* It could be a sign of retaliation. If you have recently had a disagreement with someone, they may be trying to get back at you by vandalizing your property.
* It could be a prank. Some people think it's funny to pull pranks on others, and putting dog mess at your door and ashes in your yard could be their way of having a laugh.
* It could be a warning. If you've been involved in illegal activities, someone may be trying to send you a warning to stop what you're doing.
* It could be a sign of mental illness. Sometimes people who are suffering from mental illness can do strange and unpredictable things, such as putting dog mess at someone's door.
It's important to remember that you don't have to tolerate being harassed or intimidated by someone. If you're concerned about your safety, you can contact the police or take other steps to protect yourself.