Now I see there is ones who tested my idea for acid injection as a form of ********** (yes, I knew it would work):
This experiment evaluated intra-testicular injection of a sclerosing drug, lactic acid, for ********** of bulls. Its use was compared in 58 Brahman cross calves (50 to 128kg) with the general practice of open surgical **********. Chemical ********** appeared to be more painful than surgical **********, though post-operative swelling and pain appeared similar for both methods. Chemical ********** took 3 times longer than surgical ********** (58 sec v 20 sec; P less than 0.01). Scrotal necrosis occurred in 25% of chemically-********* calves and appeared due to drug leakage from the testes under the high pressure of injection. Healing time for chemical castrates was approximately twice that for surgical castrates. Five chemically-********* calves (18%) retained one testis. Though all 5 were rendered sterile, each maintained androgenesis. This led to secondary male behaviour which caused management problems. ********** method did not influence post-operative growth. It is concluded that lactic acid administration is not a suitable alternative to the open surgical technique for ********** of Brahman cross calves.
http://medical-journals.healia.com/d...-acid-solution