Well I would say that unless the cat and hamster grew up together since birth with constant contact and no food availability stress, then the cat would see the hamster as a potentially delicious meal, just the same as a mouse. Any thing bigger, say an adult rat, and the cat would weigh up its options as the rat has potentially damaging teeth and is bigger and would fight.
Definately. It's part of a cat's nature to hunt and kill small animals, even if you feel a cat is 'used' to a hamster, it will likely try to kill it if it gets a chance.
cat then dog
No, cat pee can not kill a person. If you are in a house with a lot of cat pee, the pee can make you sick from the smell.
A cat could eat a hamster if it felt like it. I strongly suggest keeping the hamster away from the cat and the cat away from the hamster:/
cat hamster and then rabbit
Don't let the hamster out of it's cage. To a cat, a hamster is prey. A food source.
Keep the hamster cage out of reach from the cat.
The cat will eat the hamster and the cat and dog will get in a fight that will end badly
yes it is a good idea to buy a hamster with a cat
It may kill your hamster. Please do not give your hamster any alchohol at all.
It is possible. a hamster should not be kept with a gerbil. The hamster may also try kill the gerbil if it dislikes it.
minks and small mammales
No.