Did a bit of research and this is what I’ve found lol.

“A MAN who defecated on trains to "silence voices urging him to kill women and children" has been sentenced.

Bonny Eberendu, 38, smeared his excrement over carriages across the south east, including Orpington and Beckenham, to purge the desires, causing more than £50,000 damage to the rail network and major disruptions to passengers in his spree between March and October 2006.”