You NEVER put collars on cats let alone flea collars. The fleas just move to the back of the cat. Anything toxic enough to kill fleas is up around your cat's mouth and eyes.
The ONLY products to kill fleas are: Advantage and Frontline drops that go on the back of the cat's neck, available from pet supply or vet's office. Revolution drops available only from vet's office. It starts to work immediately and within 24 hours all fleas should be dead.
Our rescue group has used Advantage for years and years and encountered no problems with it.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.