So I’ve got a new cat. He likes to drink out of people glasses instead of his bowl. After giving up on keeping him away from my glassware I went through the pantry and found an old YETI cup with a good lid to keep him out of my water. I think its either aluminum or stainless steel but there are no markings to indicate. Is this safe or am I slowly giving myself heavy metal poisoning?


i’m sure it’s fine. but you can always just make a cover for any cup with a yogurt or margarine or coffee (etc) lid.
could also try leaving a tap slightly dripping (bath shower or sink) and showing the cat. If it is not too ecologically/economically onerous for you. Some cats need a bowl put under the faucet.
in my tradition, we submit to the cats and just give them their own glasses where they like them, and the humans choose a new containers and keep it in a new spot. I used to have a glass of water beside my bed for my own use, now I just have a cat glass on my bedside table and I have a water bottle the cat can’t access.