I actually had a young FO pull out his cell phone during cruise during a line check. ****ed me off as it put me in the position of being a jerk- what would happen to me if I permitted that in front of a check airman? The LCA wanted to discuss some other issues with the FO after my debrief in private so I don’t know if that came up. I think the FO moved on to the land of double breasted jackets. 🙄