Leon Arnott (l) says: Saturday:

The implication here is that Davenport is the only Dave in the world who is a mad scientist. Which I guess is in keeping with the story of this comic, that Dave's prior identity as "a guy named Dave" is so anathema to the trappings of mad science that his latent genius is a shocking revelation.

I almost forgot that Dave has been back in the Conspiracy for awhile. They aren't actually still planning to kill him, except perhaps for being incredibly threatening to their upper circle just now.