Raph: Leo why are why following the sounds of someone fighting

Leo: Because they sound like they need help

Donnie: That's great an all but what if they don't need help

Leo: It's still the right thing to do

Mikey: Then they would want to be out friends

April: Sounds nice

Casey: And unrealistic

Karai: Don't be rude

Splinter: Let's just see if this person needs help

(They hear you fighting Shredder and try to get there faster)