A 43-year-old woman lost the tip of her little finger when she was bitten while playing with her pet dog at home in Ma Tin Pok, Yuen Long, last night. She was admitted to Tuen Mun Hospital in serious condition. Meanwhile, a police officer was bitten on the ankle by a dog while patrolling alone Shek Wu Wai Road. The officer was treated in Pok Oi Hospital.