K.J. Yossman Elon Musk has called his take-over of Twitter “quite painful” in an unexpected late-night interview with the BBC. The tech billionaire sat down with BBC North America tech reporter James Clayton at Twitter’s headquarters in San Francisco on Tuesday evening local time. Asked about his previous comments regarding Twitter being “painful,” Musk acknowledged that was still the case but added, “I wasn’t stabbed, like some people around here.” The comment is understood to refer to the murder of Cash app founder Bob Lee, who was stabbed to death in San Francisco last week.