Okay, thread on Pinky the mouse's sadistic tendencies. Sorry to everyone except the maybe three people max who actually want to read this.
Starting with this, of course. I'd say it's the clearest example outside the comics. It's very interesting how he's hesitant at first but gradually gets outright enthusiastic about it.
And this, which I already posted last night but I have to put it here too. It feels like almost a sequel to the clip from Brain Meets Brawn. He's been waiting this whole time for the next opportunity.
And then we can't NOT mention...him. I feel like Dark Pinky's released all limiters on that side of himself. Normal Pinky suppresses it 99% of the time because he's too nice and only has the occasional odd outburst. This is just him acting like that 24/7.
I can't think of any other examples right now but I'll add them to this thread if I remember any. This is vital lore.