Tony suggests the Ant-Man theory to the avengers before the fight against Thanos
Scott: I'm not really sure this would work
Scott: I mean that's pretty... Disgusting...
Tony: Yeah, totally... But that would work!
Steve: For God's sake, Tony. Were you dropped on your head as a child?
Tony: Bold of you to assume I was even held
Everyone go silent, Nebula and Natasha look at each other
Nebula and Natasha: Same