On first read I pictured her standing in her knickers and vest, but she was annoyed (rightly) that she was asked to strip down because they wanted her coat to go through the scanner. The issue is that when one wears minimal clothing under an over garment (fleece/light jacket etc) and the security staff operating to 'computer says no' guidelines with no ability or wish to deviate, such indignities will occur. She hadn't planned on this hiccup revealing her lack of layering :-)