Buried himself in... yes, i can see why the DM would not see that coming. Usually PCs have a sense of self preservation.
For me the best characters i had to tackle were the PCs in a Vampire Masquerade: Victorian
game i run for 6 years. The one i liked best was a Ventrue dandy, completely debauched and bratty but also vindictive and slimy. He had a great (and somehow archetypal) backstory, and he got himself into some interesting feuds, not to mention lusting after a virginal heroine (played by a beefy guy, but that is another story
Now, this paragon of gothic villains finds himself low on willpower (a necessary stat) at some point. In order to replenish that, according to the rules, he had to indulge his nature in a way that was new to him. Since he had picked sexual deviant as his nature, and he had by that point engaged in most common kinks, the only thing left was bestiality.
He went to a hellfire club and asked for a tiger. At 3 am in the morning, in Victorian London.
The only think they had was a goat.
The dark and villainous villain checked his (lower than his morals by now) willpower, and accepted the offer.
His aristocratic Ventrue did it with a goat, and we never allowed the player to live it down since then.