I arrived ahead of schedule at my stepson’s home carrying a generous check for his newborn baby. Standing outside the slightly open kitchen window, I heard him tell his wife, “Just pretend to care until she signs the trust over on Friday, then we’ll throw the old bat into a cheap nursing home.” I never knocked. Quietly, I slid the check back into my purse, phoned my attorney, and altered exactly one line in my will. The following morning, they woke up to discover…