The stoning scene haunted me for years

If this film was intended to disturb, boy it did a goddamn good job. No film has probably disturbed me more than the stoning scene of this one did, and I'm the kind of person who can sit along Saw, Human Centipede or A Serbian Film and simply yawn or even laugh at it. I remember it was running on TV at a friend's when he celebrated his birthday party, when we were like 9 or 10, and apparently nobody was paying much attention to what was playing. And then this scene specifically came over. There were no adults in the room at the moment to turn it off after realising that was not material for kids. Of course we were totally lacking any contest about the film or the short story, it all came down to the stoning scene. I remember a shiver down my spine when the stones were offloaded from the trolley while that poor woman looked anxious and somehow accepting her fate. And then when the stoning started with that first hit under the eye I was in such shock that I could just watch in horror. Even more disturbing than the film itself was the fact that all my friends (and I must stress we were no older than 10 years at the time) where laughing out loud and cheering the mob as the scene carried on, while I sat motionless and horror-struck and feeling totally out of place, unable to understand the scene nor why my friends could find it funny. It ruined the remainder of the party for me and has haunted me ever since like only the final fight at Stephen King's Misery has ever done (I had the unluck to accidentally watch the part where Annie is bludgeoned with a pig statue when I was like 3 or 4, before my grandma realised and turned off the TV). For weeks I could literally not take the picture of Maggie's motionless body from my mind, had nightmares in which my mum or my sister took her place in the scene and never spoke about it to anyone. Now I'm 27 and out of sheer curiosity I decided to find out more details about the scene, so I came about with the movie. Of course it was not as disturbing to watch now, yet I felt shivers too. It's somehow easier to watch through it after putting it in context and understanding the message, yet wow. Has anyone felt it so disturbing as I did?