You baby-talk to him.

    "Hewo, liddle Mookie!  You can sleep down here with me, Bwad... I won't let big bad Pammy-Whammy flush you down the mean old toilet bowl, noooooo..."

    You cradle Mookie in your arms, hugging him, and curl up for a long night's sleep.

    Maybe tomorrow you'll take little Mookie to a baseball game!