Interesting enough.... if the woman had trouble with the ranaway rats making a party at her place, she should of let the boa free in the house... that would of taken care of the rodents.
I know for a fact (seen it personally), that people in the Amazon Jungle, keep boas living in their kitchens as pest control.... Boas are very tame contrary to what most believe, and by the time they grow big enough to eat large game (like a family dog for instance) it has been a couple years at least, by then it is almost a family member
, incredibly they are not agressive if well fed.