A Singapore Court of Appeal judge actually said this in his judgement (para 29 of Tan Hun Hoe v. Harte Denis Mathew, [2001] 4 SLR 317)

"Since Mr Harte fell from a most vulnerable position when his slightly
swollen scrotum after the operation was hanging deepest in the toilet
bowl, the forward movement of the body during the fall would push his
penis and scrotum to be jammed between the perineum and pelvic bone on
the top, and the hard but smooth upper surface of the toilet seat at
the bottom, whilst hemmed in at the same time by the inner thighs on
both sides. The resultant effect is a fairly hard squeezing of the
testicles on all sides for a short duration when his heavy body moved
forward and fell eventually, pulling along with it and crushing the
scrotum and testes as they passed over the smooth edged toilet seat,
which consequently resulted in the contusion injury."


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