Apparently a trip down memory lane was too much for Dr. Ben Carson.

The renowned neurosurgeon abruptly walked away from a CNN interview on Saturday after a visit to his childhood home in Detroit with Donald Trump.

Carson, who lost to Trump in the GOP primary and now serves as an adviser to his campaign, introduced the Republican presidential nominee before a speech to a predominantly African-American church in Detroit. Then Trump, Carson and members of Trump’s campaign entourage stopped by the house in the city where Carson grew up.

A CNN reporter asked Carson to describe the visit. But Carson, suddenly concerned about the fate of his luggage, abandoned the televised live interview.

Ben Carson gonna Ben Carson. pic.twitter.com/3CfXFNB5jm

— Dave Itzkoff (@ditzkoff) September 3, 2016

The abrupt departure is consistent with Carson’s past political miscues.

The world-renowned neurosurgeon is celebrated for his rise from an upbringing marred by poverty and crime. But as a presidential candidate, he developed a reputation for ill-informed comments and odd behavior, like failing to enter the debate stage at the right time.

Interview aside, the visit appears to have gone smoothly. Carson showed Trump the outside of the house and they spoke with its current owner, Felicia Reese, according to the campaign pool report.

“This house is worth a lot of money!” Trump joked to Reese, suggesting that Carson’s fame had increased its value.