be mischievous

act up fool around trespass

deviate fail misconduct offend roughhouse sin transgress

be at fault be bad be dissolute be guilty be immoral be indecorous be insubordinate be out of line be out of order be reprehensible bend the law carry on cut up do evil do wrong get into mischief go astray go wrong make trouble sow wild oats take a wrong turn

behave obey