I only have 2 a male and a female. Hobson and Ella. They play all the time, but when the going gets too rough, I have a large metal can (like the ones popcorn come in only smaller) and I have a metal slotted spoon and I hit it sharply. They both come to a dead stop every time. They are 6 months and 7 1/2 months old respectively.
Beverly
