Anyone who has attempted to cohabitate with another human knows that some people just aren't easy to live with. Throw a dog or two into the mix and things get exponentially more aggravating.
Pesky neighbors with their car alarms, sharers of the communal bathrooms, and the dreaded dog walkers are all sources of frustration for reasonable humans.
If by "reasonable humans" we mean "people who go around leaving notes for their nemeses" rather than addressing them face to face, and we do mean that exactly.
Some people just aren't able to coexist. Annoyed by all things big or small, you start to get on their nerves and they don't care who knows it.
Or they get on your nerves and you're the one who goes around leaving passive aggressive notes everywhere. (Don't be that person? Maybe?)
Behold 25 classic passive aggressive notes ... sometimes sans the passive part: