Casey isn't sure about that, and he isn't too much for tact.

"Watch my back? You mean I'll be watching yours. Guessing you're not much of a fighter." Unless he's hiding some kind of ninja master talent in that doughy body, Casey is pretty sure he'll be doing most of the fighting in this team up. And actually it'd be a great time for Greg to surprise him with some, these things are mean.

"I can help you get back out of the carnival, but...I think we gotta go fast," and Casey will probably immediately run right back in once Greg is safe.