Should that happen, Welch said he would ask the bank's human-resources department to secure time without pay for the bank's in-house brawler, thus ensuring his job doesn't go anywhere.

WSJ: This Top Heavyweight Has a Day Job

"Asking smart questions is a positive quality in an employee, " says Holly Stroupe, a Bank of America human resources consultant who was hired full time after her own internship.

FORBES: Turn Your Internship Into Your Job

"While it's important to treat your internship as a job interview, it's also important to make it a learning experience coupled with self-exploration, " says Holly Stroupe Vestal, a human resources consultant for Bank of America's Banking Center Channel, who was hired full time after her own internship.

FORBES: Turn Your Internship Into Your Job