I won't tell you what the probability of success/failure is, but I will say that it is very IC dependant. We do pay attention to how characters sustain their injuries (i.e. a foal ignoring our warnings and fighting anyways vs. someone who is crippled in a SWP trying to defend someone else).
But you're welcome to try. Just remember that it IS possible to get on the God's nerves, so bear that in mind as well! :D