TOLLAND, CT—Responding with lightning-quick reflexes to her dinner guest’s proposal, area mother Linda McGregor reportedly grabbed a 10-inch chef’s knife Thursday night and held it up to the throat of family friend Diane Wallace following her offer to help with the dishes. “Say one more thing about clearing the table or putting the dishes in the dishwasher, Diane, and I’ll gut you like a fish,” said the 56-year-old, intently staring into Wallace’s eyes as she pressed the blade just firmly enough against the woman’s neck for it to draw a single bead of blood.