Six things Tadashi Hamada never said. Tadashi-centric. One-shot.
1. He never calls Hiro a burden. No matter how many times he has had to bail his little brother out from shifty alleyways and dangerous botfights, no matter how many times he ends up nursing bruises and cuts due to their latest escape.
2. He never calls Aunt Cass "mom", because no matter how much he loves her (which is a lot in the first place, to go by), that term is specifically reserved for the dark-haired woman with large brown eyes brimming with warmth, and a laugh like the tinkling bells of the church. Or the grey headstone he visits every month.
3. He never calls his friends nerds - even though Wasabi insists that's technically what they are. He calls them his friends, simple as that, and he whole-heartedly believes that they are amazing and beautiful people - never the socially awkward outcasts of the school population.
4. He never expounds on his reason behind creating Baymax, but nearly everyone has the vague inclination. Baymax could heal, Baymax could help, and most importantly, Baymax could save. Baymax could save people from illnesses, from heart attacks, from car accidents. (Like the one that took his and Hiro's parents).
5. He never says "I'm giving up on you" - To both Hiro and Baymax.
6. He never says goodbye.