I've found a job for that chap who has a chemistry degree…..
One study found that subjects who retracted the foreskin when bathing were less likely to have smegma accumulation.[12] An early study by Plaut and Kohn-Speyer (1947)[13] found that horse smegma had a carcinogenic effect on mice.
Scraping smeg off horses cocks and wiping it onto mice, could there be no more worthy profession?! 😉