While playing paradox mage, the corrupted wyrm was duplicated. I was not messing with the timeline, but an anomaly probably happened. The copy would not attack or despawn. I finished the feisty one, got the wyrm byle. Then I saw the 2nd one behind a corner, killed it and got a 2nd wyrm bile. I had drank the first before finding the 2nd, if that matters. I drank the 2nd too, getting another set of random stat changes and another cat point.
Luckiest bug ever.
http://te4.org/characters/7470/tome/a2c ... 041a5e6e83