That's awesome. You might have to train him to stay out of your sewing room but he must feel safe there. We recently had a report on the news about a cat that adopted a family several yrs ago when their son was a baby. He was about 4 or 5 at time of report but was out front walking his bike and a neighbor's watch dog came out and attacked the kid and was dragging him down the drive way when out of no where came this cat and knocked the dog on his behind parts and continued to chase the dog until he was out of sight. You just never know what animals or people are brought into our lives for. I love calico cats. Mine is about 13 yrs old and we'll miss her when she's gone. We got her from the SPCA. She stays out of my sewing room but that didn't come naturally