Feng Yi needed to maintain tight control over his poison glands, executing two steps concurrently.
First, he must ensure that the poison glands did not store any poison. Nowadays, electrical appliances emphasized instant heating, and his poison glands had to adopt an "instant poison" mechanism too, to release the poison instantly when needed without any leakage when not!
Second, control should not be limited to the poison glands and adjacent muscles but also extend to the poison ducts. This way, even if the poison glands stored poison, external forces wouldn't be able to cause it to discharge easily!
He managed to attack the problem from both sides without contradiction!
With such a dual approach, he was as stable as an ox!
Feng Yi was very satisfied with his method of controlling his poison glands and didn't need to worry about accidentally injuring his friends while dining anymore.