Bad / Dishonest
deceitful - Intentionally misleading or dishonest.
decoy - An object made to resemble something else, to lure someone into a trap.
duplicitous - Deliberately misleading or two-faced in behavior or speech.
disingenuous - Giving a false appearance of being truthful or genuine.
freeloader - A person who takes advantage of others' generosity or resources without giving anything in return.
quackery - Deceptive or dishonest practices, particularly in fields such as health, medicine, or business, that are designed to exploit others.
smokescreen - A distraction or false front used to mislead or deceive others.
mischief - Behavior that causes minor damage or annoyance, especially by children or animals.
deceptive - Causing someone to believe something untrue.
ruse - A ploy or stratagem used to manipulate a situation in one's favor, often by hiding one's true intentions or motives.
deceive - To mislead or trick someone, especially for personal gain.
machinations - Crafty schemes or plots, especially intended to achieve something deceitful or underhanded; secret or complicated plans, often with a negative or manipulative goal.