Another passive aggressive note that reads as follows:

街坊鄰居您好：

• 這附近很少有流浪犬，卻常在巷口這一帶見到狗狗的[drawing of pool of dog piss]和 💩。
• 請想想出入踩到的人心情有多差…😞
• 煩請發揮公德心&飼主之義務，勿放任家犬便溺卻不清理！

非常感謝！ Thanks a lot!!

[Translation]

Dear block neighbours:

• There are very few stray dogs around here, but I often find doggy and [drawing of pool of dog piss] and 💩 around the mouth of the alley.
• Think of how this affects the mood of people who step on it when they come in or out… 😞
• Please have some common decency & take responsibility as a pet owner, don’t let your pet dog defecate and urinate without cleaning it up!

THANKS A LOT!

The friendly tone of the note, but insistent use of emojis qualify it as passive aggressive.

Also interesting is the use of the character 「溺」(here niao4/ㄋㄧㄠˋ) as a variant for 「尿」