Raph takes a step forward, and even though this puts him well into Mike and Renee's personal space, his eyes never leave Leonardo.

Mike instinctively reaches for Renee's hand.

"Oh you're damn right I can. And I will."

"Raph, back off," says Don as he puts a hand on Raph's shoulder.
A fraction of a second later Raph turns on Don, arm raised in a fist. The taller brother flinches.

"Enough!" This time it's Leo. And he follows it up with a string of Japanese.

Raph snorts in displeasure, but backs down, going so far as to distance himself from the group until Casey arrives.