April 21, 2016 3:03 PM EDT

Lena Headey—who plays Cersei Lannister on Game of Thrones—made an appearance on The Late Late Show with James Corden Wednesday night and chatted about her now-infamous walk of shame in the HBO drama’s season five finale. The 42-year-old actress revealed that while she has received mixed reactions for her work in the scene, one fan made her feel particularly uncomfortable.

Read More: Lena Headey Explains Why She Didn’t Get Naked for Game of Thrones Scene

After giving birth to her daughter last July, Headey was breastfeeding the newborn while still at the hospital. When she asked a nurse for help, the woman chose that moment to do her best impression of Septa Unella, a.k.a. the Shame Nun.

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Write to Megan McCluskey at megan.mccluskey@time.com.

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