I've seen this quote appear in a few different places, ostensibly from Seneca's Octavia. (Or maybe not Seneca's, we're not sure.)
Extinguat et me, ne manu nostra cadat!
However, I don't have a copy of Octavia, so I have no context for it.
My translation would be:
And let it end my life; may it not fall from our hand!
But this doesn't make very much sense. Am I missing some point of grammar?