Yes, vetting is extremely important and I've shared my home constantly for the last 15 years without serious problems because of it. In this case I did the usual background checks, asked the pertinent questions and felt inclined to help because they were employed by a friend and acting responsibly. We are talking about a former banking professional and a pharmaceutical research assistant here, .. Good backgrounds ... They were fighting corruption ...They were homeless because they had been flooded out of their home, and it was an emergency situation, so there's your lesson, be careful in emergencies with hasty decisions ... I charged them much less then the going rate because they had lost so much but yes, I must pay my own bills on time ... Strangely, their lives became full of mishap shortly after they moved in ... Like I said, trauma can produce addiction. Lesson #2.
It's sad, all of it, because you're right, we become cautious and distrustful ..