antumbra I had a similar experience with the crucifixion being described in gory detail at school.
I went to RC school for my first three years (nothing to do with religion, it was the best school in the area.) The nuns there judged it perfectly in my opinion - an understanding of the philosophical/religious viewpoint that Jesus died for our sins because he loved us, and that he was tempted, etc, but no gory, bloody detail.
Then I transferred to a CofE school when I was 7. (Dear parents, please don't do this to your kids because it's really really confusing.) The headmaster of this school was a religious zealot and definitely unhinged. The first year I was there we got a special assembly where he lectured us for an hour about Jesus's agony on the cross, all the stuff about thorns piercing his head, the agony of the nails, etc. He then said that every time we sinned or broke a school rule we were hammering another nail into Jesus and we should expect to be held to account for it. 
Cue nightmares of angry Jesus stalking me every time I passed a note in class or hung my coat on a top peg when it was bottom peg day.
Not only were the infant classes crying by the time he was finished but you could see that he relished their fears.
This same head teacher, two years later, came thundering into our classroom one morning in December just after break. He had heard some of us outside in the playground singing "We three kings of Orient are, one in a taxi one in a car, one on a scooter beeping his hooter, following yonder star."
We were then treated to a 20 minute lecture about how we had all been BLASPHEMING and would certainly be going to Hell, which he described in loving detail. How our skins would roast like pork crackling on a Sunday and our hair would frizzle up and burn off, with the smell of our roasting limbs in our nostrils, and demons chopping bits off. For eternity. This was to a class of 9 year olds. One girl cried so hard she was physically sick.
Two years later he was forcibly retired after he beat a boy in class who he heard shouting "oh shit" on the playground. This was well after capital punishment was banned in schools. The man was a sadist, pure and simple.
So... yeah, it's just a long weekend round my gaff. I don't even like chocolate!