I left my mug of yerba mate tea sitting on the desk for all of 10 seconds while I went to put in my contacts. Figured it was safe because the monster has never shown much interest in tea before, plus, she was fast asleep in her cardboard box. I got back after just a few short seconds, and she was on my chair, nose in my tea. Aside from having to drink tea with fluff in it, is there any real harm if she took a sip or two of yerba mate? I know some herbal teas are okay for them, but this one is caffeinated. She's being her normal, snuggly, hay-munching self, but I just wanted to be sure.