Michelangelo, Joan and others in “Unfinished Business”

They saw something, but they don't know what.

[on TV] And that "something" seemed to be four human-sized mutant turtles.

At least she doesn't know they're ninjas.

[on TV] And they appeared to be carrying ninja weapons.

Or that they're named after artists?

[on TV] Furthermore, they may also be…

[turns off the TV, annoyed] Oh, doesn't she ever shut up?

[angrily, turns on his sons] How could you all be so careless!? Secrecy is the most important rule of the ninja, and you have broken it! You four are forbidden from leaving the lair!

[shocked, enraged] What!? You can't hold that sloppy escape against us! We got slimed with toxic puke!

[angrily] Silence!

But, Sensei, if that pile of muck took us down, you know he's dangerous.

Which means we need to be out there looking for him.

[angrily] No! Until I decide I can trust you to watch yourselves, you will remain here, grounded! [storms off as The Turtles disappointed at this.]

[groans]

Oh, yeah. Crognard marathon.

[Throws his staff at the television set] And no TV!