In the first part, the author and my five-year-old child treat the weak snail very gently.
In the second part, the author thinks that it is only his own children, but the children in his own eyes are naughty, catching mice, shooting birds, leaving kittens behind, not listening to their parents and spreading some embarrassing information.
But that's the truth, because I'm the mother of the child,
We treat snails well.
The emotion expressed here is a mother's infinite love for her children, no matter how much they do.
Bad things, what a mother wants to remember is always their good side, every detail.
The contrast between the meticulous treatment of snails in front and the careless treatment of mice, birds, cats and even people in the back deepens the expression of this emotion.