Rescue a Cockroach from Your Cat - Humanely

The Scene:

Your house cat, following her natural feline instinct, has spotted something moving which does not seem to have permission to trespass. She spends an hour or so deciding what to do, then suddenly springs to life, snags a cockroach with one claw and puts it in her mouth to save for later.

The Dilemma:

Your natural human desire to protect all life impels you to get the cockroach out of the cat