Piccolo and Tien in “Unfinished Business”

Piccolo

Goku's just not his usual confident self. His attacks aren't even hurting the android. He's going to need our help you guys.

Tien

Hey, wait a sec. He seems fine. You're being paranoid. I mean look at him. What could go wrong?

Piccolo

I tell you, something's not right. Goku's maxed out for some reason. He's going to give out if this keeps up.