Cassie and Vlad disguising themselves as Sister Sacrilege and Altar Boy in Super Sidekick Sleepover Slaughter, to name but one example.
In Slice Hard, when Acid Angel tells the other slashers she can burn through the wall into the room where their weapons are, but she can only produce acid when she's turned on.
Ashley: "Yeah, my old Speak N' Say didn't work unless I turned it on either." (cue Sexy Discretion Shot of Acid Angel moaning while the wall dissolves) Acid Angel: "Mmmm... There ya go, boys. Yours for the taking." Ashley: "That's not how I turned on my Speak N' Say."
"I let my guard down, just for a second, and this is what I get. I should have known this was going to end with me punching a dinosaur in the brain."
From Fame Monster:
Neflord 1: "I/we will fill that one with seed first."