I think many of us who love animals have gone through this, I remember a couple years ago I had to put my 13 year old cat Buddy to sleep. I sat with him in the vets cold little sterile room and told him I loved him and how I wished I could help him, I was bawling my eyes out, and after I paid my bill with barely a glance from the receptionist, I left the clinic I went out to my car and sobbed my heart out. It is one of the most difficult things to cope with