My cats have had fleas before so I know it's not ill treatment, these things just happen. I dont know why he's coming for food? I'd never seen him before my kitten was in season. He's a friendly cat, although my cats hiss at him they dont fight, I think he's scared more than anything else. He just walks into my kitchen stright to the cats food but I dont like that cos my cats might catch something, you cant be too carefull. I think she may of left the color on so I could take it back. I dont know what it is but every where I live I seem to have cat's coming for food. He's at my door now so just going to see him, me and my big heart.