CATLOVER11 was absolutely right! You are to be commended for keeping Phoebe indoors and on a harness and lead when supervised outside. People don't realize, in addition to the dangers that Catlover11 mentioned, that if something spooks a cat it can take off in a flash and be lost.

You should be used as an example to all cat owners. Here in the states if a beauty like Phoebe has any white at all on them, they are called a calico.