As a new cat owner I have some questions. 1. Is it dangerous to use fishing line when making homemade cat toys. 2. I am hiding treats and showing the cat where they are and it doesn't register with her. She can watch me put treats in a Kong and even see them fall out but doesn't seem to realize they are there. Note I have had her for only 2 months and she was abandoned on the side of the road and ended up starving and cold in my nephews barn. I am trying to understand her. She is about 2 years old and fixed. Was fixed when she showed up in the barn.