As with any interview question, you should avoid being dishonest in your response. If you were fired, it may be tempting to fib and give another reason, but the interviewer will find out when they call your previous employer for a reference. Be honest and humble, showing you have remorse for your actions and can take ownership when you make a mistake. Avoid speaking negatively of your previous supervisor or coworkers if you left because of issues at work. If you gave notice because you did not like the work environment or management, explain that you left because you were seeking employment with a company that offers room for professional growth.

"I gave notice at my last place of employment to pursue a career in the construction industry. I worked as a pizza delivery driver through high school and knew that I wanted to pursue a career as a Roofer after graduation. I left on good terms and am still friends with my former supervisor and coworkers."