Not necessarily. You were being pragmatic first. And the Halacha is that even if a PERSON comes to G-d forbid kill you (or your family) you kill him first. But you couldn’t exactly kill the crocodile with your bare hands. So you were searching for the appropriate tool to be able to complete this life saving task.
And my guess is then you panicked and woke up… Because your next step would have likely been to beg Hashem for mercy.