The people I knew who kept these snakes were somehow not the owners? Just renters or boarders, perhaps? Interesting way to view it, I have to say.
99% of retic owners will laugh at you for thinking that they feed live. The prey items are large enough to be a danger to the snake and the owner. Secondly, the retics are ambitious and securing live prey will most likely result in destruction of the enclosure. I’m going to just say you pulled that out of thin air or read it online somewhere.