We have had our adopted Mexican street cat, Felix, for a month now.“Has he bulked out?” I asked my husband, Peter, as we watched Felix, standing on his back legs and walloping the tattered mouse hanging from his sisal scratching post. Felix looked like a boxer, beating the remaining stuffing out of his helpless little toy mouse. Bits of fur and mouse innards were strewn around the kitchen. But the carnage was not limited to the kitchen.Living with a cat, you start to eye gravity with suspicion. Small items that appeared to be securely in place must be scrutinized, as ...