example instead of having to wake up in the middle of the night if you owe someone a payment, have it scheduled to send out, leave the wallet unprotected so funds are stolen before you wake up, maybe even as soon as the funds are available.
FYPFY. The answer is no and it probably a good idea. What you are describing is a hot wallet and every major hack/theft of bitcoins involved a hot wallet (from MyBitcoin to Bitcoinica).