If you are only just beginning your Game of Thrones journey, then you may want to sit this one out as it does – we repeat, it does – contain a spoiler from season 3.
But for those of you who are fully up to date, or at the very least, knee-deep in season 4, you will know that Theon, who is played by Alfie Allen, lost a very important body part at the hands of Ramsay Snow.
Now, that we're all clear on that front, let's introduce Game of Thrones fan, Olivia Bowes, who recently uploaded a shot of herself with Alfie.
With a nod to Theon's mutilation, Olivia wrote: "Unlike Theon I grew some balls and asked for a photo."
A pretty slick caption for a pretty exciting moment… if only it were true.
So, it turns out that Alfie spotted the upload (and its caption) and decided to put Olivia's followers straight on something.
"Actually your Mum asked for you," he replied in a move which no doubt had Olivia reaching for the ice.
"F*CKING SAVAGE IM SCREAMING," replied one Instagram user in the wake of Alfie's clapback while another added: "I felt that burn from the end of the earth and came here to witness this wonder."
"Wow. It's like Olivia is the wall and Alfie just come in like Viserion and…burn!" joked another.
Better luck next time, Olivia.