Something to be aware of for oneself or relatives.
Also, not just those contracting services, note the comment by user Yubaru:
And besides 'regular' service providers, and some kind of religion/cult, I think there are quack doctors offering power crystals, massage, etc.These are not the only one's either! When my father-in-law was ill, had lung cancer, and was dying, his cousin got him involved with a "religious" group that tried to take over all his assets in return for "taking care" of him while he was dying.
Long story short here, between the family, we were able to cut the ties between this group and him, and they got nothing.
Sadly they prey on the weak at their weakest time, and there is little that can be done to stop them if people arent aware of what is going on.