Singer-songwriter Rihanna knows how to maintain her composure. The singer was exiting the Four Seasons Hotel in New York City, when her security guard walked ahead of her, leaving the doors behind him to close in her face.

The Grammy-winning artiste, 37, took the snafu in stride, pausing for a moment before quipping, “Such a gentleman you are” in a video that’s since gone viral on social media, reports ‘People’ magazine.