When I saw 头头 last moments at the vet and the moment her jaw hung loose, I couldn't hold back my tears. I lost my cat of 17 years in 2019, and the process of watching her without energy but softly meowing to me in a weak tone was her way of telling me goodbye. The last three days of her life, she could not move, meow or even eat. When she passed on, I couldn't accept that she was gone and till this day, I still think of her. Teacher Li please stay strong and know that 头头 is in a better place than earth.