16x21,bart simpson,angry,episode 21,upset,season 16,principal skinner,yelling,pointing
16x21,bart simpson,lisa simpson,angry,episode 21,season 16,dinner
16x21,marge simpson,episode 21,school,mad,season 16,ned flanders,father,reverend,arms crossed
16x21,bart simpson,episode 21,scared,running,season 16,milhouse van houten,warning,rats,millhouse van houten
16x21,episode 21,scared,upset,season 16,annoyed,milhouse van houten,nelson muntz,holding shield