I remember way back to the official message board days--I remember that one young lady reacted to the scene in "Becoming pt 2" of Angel's fate by posting "Oh My G**" about 25 times in a row--and that's all she posted, OMG about 25 times in a row! Of course that was an incredibly shocking scene! Of course BtVS had other shocking scenes. Here's my list of the most shocking Buffy scenes, in increasing order of shockiness.
Buffy dying in "Prophecy Girl" in season 1. I thought she would've avoided that, luckily she died for just a moment.
Spike dissolving and Anya dying in the season 7 finale
Willow killing Bambi in the season 6 opener--I found it shocking because it showed a really dark side to the formally sweet Willow, which of course later manifested itself in a humungous way!
Cassie dying is season 7--that was unexpected!
Buffy pinning Anya to the wall with a sword in season 7--l thought Anya was dead for a moment! Luckily Anya didn't die but lived on--for a few more months.
Buffy dying again in "The Gift" in season 5
Angel turning evil in "Innocence."
Evil Angel killing Jenny Calender in "Passion."
Spike trying to rape Buffy in "Seeing Red."
Xander losing his eye in season 7.
Willow flaying Warren alive in season 6
The aforementioned Buffy sending Angel to Hell in "Becoming pt 2"
Buffy finding her mother's body in "The Body." I would've put this on top but since Joyce had been ill for awhile it wasn't too unexpected.
And the numero uno shocking scene imho was also in "Seeing Red," and can be described simply--"Willow, your shirt."
This show really did like to shock its audience--yup!!!
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