Mom we are sorry we didn't mean to yell at you :(
they get out of school and start walking to their house
they get home get their bags off and take out their home work and start doing it, their mom walks in and asks "do you guys need help?" they both say "No we can do it ourselves !" and their mom get upset
They felt bad because they yelled at their mom and they went to apologies to her , And they figures out the proverb "Don't bite the hand that feeds you"