You shouldn't make fun of someone else.
Lisa sees the same kid in the corner of the lunchroom not eating because they never have lunch money.
Lisa wants to decide what to do.
Lisa heads over and talks to the kid and asks some questions.
Lisa makes fun of the kid for not having any money.
Turns out the kid just doesn't like the food the school has.
The kid beats up Lisa and takes her money and then laughs at her.