Wow! That must have been hard to turn down. I also was given a free adult male and an adult female Brazilian rainbow boa. The owner had to rehome them quickly as she had to move with just a few days notice (domestic situation) and couldn't bring them with her. I've told her several times that when she gets back on her feet I'll return them, but she insists they are mine.

They are beautiful animals, easy to keep if set up in the correct enclosure, and a joy to handle. I would have a hard time turning another one away if it were offered.