David Schwimmer hopes he “never” runs into Rod Stewart after admitting that he once “served” the Grammy winner divorce papers.

During his appearance on Monday’s episode of “The Late Show with Stephen Colbert,” the “Friends” alum recalled delivering Stewart the documents to end his marriage while working as a process server during his college days.

“Thank goodness I’ve never run into him since, but I served Rod Stewart. I don’t even know if he knows. I don’t think he knows,” Schwimmer shared.

Colbert, 60, couldn’t help but poke fun at Schwimmer’s story and replied, “He knows now!”

The late-night talk show host then jokingly advised the 58-year-old to “change [his] locks” because Stewart is “vengeful.”

“You could theoretically run into Rod Stewart sometime! Now he knows to punch you,” Colbert added playfully.

Earlier in the interview, Schwimmer explained that he had “so many banana jobs” before he made it big by portraying Ross Geller on the beloved “Friends” sitcom.

“One summer after my freshman year in college, I was just looking for work, and my mom said, ‘Well, you can be a process server for me,’” the actor recalled. “My mom was a divorce lawyer, and I was the guy who would pop out of the bushes and serve you divorce papers.”

Although the Emmy-nominated star didn’t name which woman Stewart was divorcing at the time, Schwimmer did mention he was around 18 years old at the time of the incident.

The “Da Ya Think I’m Sexy?” crooner and his first wife, Alana Stewart, divorced in 1984.

Rod, 80, and Alana welcomed two children together: Kimberly, 45, and Sean, 44.

The father of eight then went on to tie the knot with Rachel Hunter in 1990. Hunter and Rod welcomed two children during their marriage: Liam, 30, and Renee, 32.

The couple split by 2006.

Rod is currently married to Penny Lancaster, whom he said “I do” to in Italy in 2007.

The couple share two kids: Alastair, 19, and Aiden, 13.

In addition to his other children, Rod and ex-girlfriend Susannah Boffey share one daughter, Sarah. The musician also shares daughter Ruby with ex-girlfriend Kelly Emberg.