Apologies if someone else has mentioned this, but apropos of the "alcohol injection" thread elsewhere on the board, here's an abstract from 2009 which mentions the injection of sclerosants (i.e. alcohol/glycerol) as a means of castration:

http://meeting.ascopubs.org/cgi/content/abstract/27/15S ...

A man castrated his neighbour's dog after it tried to mate with his pedigree animal.

Eddie Flood used a lamb ring to cut the testicles off the cross- terrier after claiming his three dogs were being pestered by the animal.

Flood (43), of Carnasaull, Termon, Co Donegal, claimed the dog was allowed ...

He has no visible adam's apple in the close-up photo on the article page.

Listen to the audio clips linked there -- it's gorgeous, and in no way sounds falsetto.

http://www.nytimes.com/2010/11/21/magazine/21soprano-t.html

"Jaroussky made his professional debut singing Scarlatti at a French summer festival in 1999, when he was 21. He was fortunate in his timing. In the last few decades, much of the Baroque repertory — the operas and sacred music of composers ...