I noticed from letsplay - you can buy Hercules drug for any amount of coins if you have less than 500 (at least true for Mercantile option ffor buying for 500 charons).
Current experimental version of course.
Also Enrage didn't affect Burrower Warrior it seems - it still attacked PC instead of it's insect mates.
EDIT: well I guess that was rare occasion when its not aggroed on anyone, I guess it's still chance based?
Explosion from Termodinamic Destabilisation is either very quiet or it's a bug because it failed to attract rathounds arond the corner.
If you hack door to a Blain, it get closed every time you leave and enter area with his shop, so you need to hack it again. Maybe not a bug.