Peter Dinklage, who portrays the intrepid Tyrion "The Imp" Lannister on HBO's flagship series Game of Thrones, is having a hard time coping with something that occurred in the midst of a fight scene last season.

During the episode "Blackwater," Tyrion leads Lannister forces through a secret tunnel through the walls of King's Landing to maneuver his men behind Stannis Baratheon's forces. The first casualty of that battle was a soldier whose leg Tyrion hacked off with a large axe, who then promptly fell over and received a killing blow to the face.

Well, it's a bit more complicated than that, and it has our favorite Lannister feeling a bit guilty. In an interview with Playboy magazine, Dinklage admits he had a difficult time filming that particular scene.

"There's a scene in the show where I chop a man's leg off from behind. The gentleman was probably about 70 years old. They filmed him from the back, so you don't see how old he is. And he's an amputee. He had one leg, so basically I just knocked out the fake leg," he explained.

"I had a big dull sword, and I knocked a wooden leg off an amputee who was 70 years old... The fight scenes are all a big lie. The whole time, you're trying not to get hit in the eye with a sword, and you wish you had on a welding helmet," he added.

"Game of Thrones" season three continues its tale of political intrigue, backstabbing, war and woe this Sunday at 9 p.m.

Feeling a little lost? You can read more on Peter Dinklage's character Here.