Has your mum got cats at her house? (you are at your mum's right?)
Today I made a new friend btw - a young tortoiseshell, although not like Flo and Delta, looked more lie a cross between a ginger and a black and white cat, rather than a calico.
She was really nice though and even let my nana pick me up. I was glad she came over to me when I tried to get her to approach me, as apparantly she's really timid and jumps and runs into her garden whenever anyone gets near her lol. But she came up to me and even came in the house with me and rolled on her back in front of me. Lovely cat. God I love cats, they're perfect, seriously!