During his time on the nation’s pre-eminent business court, Vice Chancellor Donald F. Parsons Jr. has presided over some of the country’s most highly discussed and contentious corporate cases. His decisions have been widely hailed for their careful, workmanlike nature, and he has earned a reputation as one of the state’s most respected jurists.

But there was a time when the possibility of a legal career for Parsons seemed remote at best. In fact, Parsons, who is retiring after his 12-year term officially ends Thursday, described his entry into the profession as an “accident.”