My darn mean guinea pig

Well I have two guinea pigs. One is super mean and hyper. The other is sweet and kind. Gracie, the calm one, would rarely ever bite a soul. On the other hand Elizabeth would bite a human for 1 half of a penny. Elizabeth bit my little sister and she started crying. My friend and I were rehearsing a play I wrote. We heard the crying of my little sister. We thought someone just took her toy so we continued on rehearsing for my play. Then my mom got my little sister down from upstairs. She was bleeding all over her thumb! I RAN to get a band-aid as fast as I could. There were adults surrounding her. I hate blood!