He listened carefully, but there was no doubt in his mind that he would take any risk if it meant protecting those he loved. Especially now with Ginny in his flat, he needed to ensure he would not be a danger to her, however accidental. He refused to lose anyone else.
"I have already considered there being risks involved, Mister Nott. My eldest brother is a cursebreaker, and I am not ignorant of the dangers. No risk is too great if it means ensuring that no others are punished by whatever curse is afflicting me."
He didn't say that if this did not work, his only choice would be self-sacrifice.