Motivated By: Fear of change
How They'll Ruin Their Own Life: An unevolved Taurean’s intense fear of change will get them so stuck in their familiar patterns and habits that they will eventually find themselves completely stagnant and unhappy in their lives. They cling to their grudges, resentments, and material possessions to give them a sense of misplaced stability.
How They'll Ruin Your Life: If you ever say anything that even mildly offends them, they will hold it against you for the rest of your life. Their obsession with predictability means that if you ever behave differently than they expect you to, they will view it as a betrayal.