11.   You know that stuff he was going on about for special like continuous pressure and all that sort of crap.

12.   And does anyone really know this stuff?

13.   And though he might be an unusual steward for the streets, Lazerine does seem to know his stuff, both on the content and business sides of publishing.

14.   And they must know their stuff.

15.   Anyone who has heard him speak on the subject should realize Wilson knows his stuff.

16.   As fashion and style director of Mode magazine, one of the hippest magazines on the market for plus-size women, Weston knows her stuff.

17.   As the former chief security scientist for Netscape, who helped create the Navigator browser, Elgamal knows his stuff.

18.   A.D.A. Hank Goldberg knows his stuff but must raise his voice or risk another sleeping juror.

19.   But he knew his stuff.

20.   But he convinces us he knows his stuff.