This is another Inconvenience based on one of the seven deadly sins: anger.
Inconvenience practitioners recognize how much resentment and anger can affect the behavior of clients, often driving them into the very the behavior the inconvenience community desires.
The writer notes the universality of human anger by commenting that both the sensitive and the insensitive personalities can succumb to it.
The word manure is used as a socially-delicate comment on the quality of the encouragement required to stoke the fires of rage. The images of the gardening tools emphasizes the necessity of this manure.
Note the upside-down hearts that signify inconvenience.
Animate Anger
Tender skins may work best on anger,
although tough skins are not too difficult either.
Plant impatience and resentment,
mulch with manure and harvest