Hitachi HDD: Z7K320-250 / 250GB / SATA 3.0Gb/s.
Data erasure method: 50lb Longbow, two arrows at 15 yards.
Posted this on the birdcage a while back. Just wanted to have it here. Oh, and for any that doubt the reliability of this method, I could pour out the glass substrate (platter completely bent), thousands of tiny shards. Gone baby gone
@JulianOliver
My boss had a platter explosively shatter in his hand (no injury, thankfully) during a disassembly/destruction process. I forwarded this to him as a suggested safer method of drive erasure for next time.  :BlobCatGoogly:
@RickRae Cripes, a bit frightening!