"My family does April Fools. Her family doesn’t do April Fools," Kit, who plays Jon Snow on GoT, explained on The Jonathan Ross Show.
To try to get his wife-to-be into the spirit of things, the actor decided to hide a severed head in the fridge. Naturally, it didn't go as he'd hoped.
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In the video, Rose opens the fridge before screaming and collapsing onto the floor.
"And after that, she was in tears, and I was there going, ‘April Fools.’ It didn’t go down well."
"She pretty much told me that if I did it ever again, that would be it, and I think that’s marriage included," Kit concluded.
Watch the full clip below:
