Ps: Of course I won't steal your faucet's balance and run away.
He cant steal any coins unless he change the payout amount when it is time for him to redeem in the faucet. If you are reffering to steal the balance in faucetbox then he cant since he dont have the access in your account at faucetbox, its only the faucet id and password i think. Im not sure in the exact words
he can't from faucetbox but he can raise payout to ur balance and claim it himself he has access to faucet admin page since he can change it he has control of hosting