LONDON -- When Cersei isn't busy plotting to secure the Iron Throne or My Sex Doll Bodyguard (2020)publicly shutting down Donald Trump, she can occasionally be found shaming bad drivers.

On Monday night, actress Lena Headey took to Twitter to pen an open letter to the parents of young drivers in LA.

Needless to say, the Queen (or former Queen, at least) was unimpressed.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

This Tweet is currently unavailable. It might be loading or has been removed.

The best bit was definitely her sign-off.

This Tweet is currently unavailable. It might be loading or has been removed.

We don't know who you are or what you did, unnamed BMW driver, but you've made yourself a powerful enemy.

BONUS: The Adventures of Sad George R. R. Martin.

View this post on Instagram

Have something to add to this story? Share it in the comments.