This document discusses 10 cases where courts have excluded prior bad acts or convictions from being entered as evidence. The cases establish that arrests without convictions cannot be used to impeach credibility, specific acts of misconduct not resulting in convictions are impermissible for impeachment, and extraneous evidence of misconduct only serves to prejudice juries. Prior convictions must have passed the appeal period and involve crimes of dishonesty or false statement to be admissible for impeachment purposes.