mad
Explanation
This comic takes the wholesome anger-management advice of "plant a tree when you're mad" and pushes it to its darkly logical extreme. A daughter asks her mother how she stays so calm. The mother explains that whenever she gets mad, she plants a tree instead of acting out, and she has been doing this for 30 years. The third panel reveals the result: a vast, dense forest that the mother proudly calls "the Forest of Hatred," through which she walks as its princess.
The final panel delivers the real punchline. The daughter begins to realize the implications -- "So when Dad ran away with your friend--" -- but the mother, standing beside an entire lake, cuts her off: "Did you know I dug this enchanted lake with a SHOVEL?" The humor here is that what initially seemed like a healthy coping mechanism is actually a monument to barely-contained, decades-long fury. The sheer scale of the landscaping project -- an entire forest and a hand-dug lake -- reveals just how much rage the mother has been channeling. The fact that she frames mass deforestation-scale planting and excavation as a charming fairy-tale kingdom ("Princess of the Forest of Hatred") adds an additional layer of comic dissonance between the serene presentation and the volcanic anger underneath.
The joke plays on the common self-help trope of redirecting negative emotions into productive activities, suggesting that if you take it literally and far enough, the "healthy" output becomes its own kind of terrifying.