I'm a member of the bar in two states and a practicing lawyer, and everything I know about grand jury procedure I've learned from TV. We didn't do it in my 1st year crim law class, it wasn't in my bar review, and I've never practiced criminal law. Given that Timmy has never practiced, it can't be assumed - to the point of a criminal indictment, which is what you are arguing - that he knows the procedures.
But he explained it on TV.
Sooooo, you're an ATTORNEY!!! Should have known...you seem mean.