Nick Romano
May 29, 2016 AT 06:19 PM EDT

When Jessica Jones star David Tennant hit up Marvel to answer some fan questions, he couldn’t talk about too much — like whether or not Kilgrave will return for season 2 of the Netflix series — but he did throw in his two cents on some hypotheticals.

When asked how Tony Stark goes to the bathroom in his Iron Man suit, he said, “It’s an unexplored world, isn’t it? Waste products for superheroes.” Tennant guessed the billionaire-playboy-philanthropist has it easy, and said he imagines he has some sort of “drawbridge situation.”

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Elsewhere, Tennant answered other important questions like, “Out of the Avengers, who would cry the most watching The Fault in Our Stars?” and “Who would win in a death battle between Jessica Jones [and] Iron Fist?”

Addressing the latter, he said, “Well, maybe we’ll find out.” The Hell’s Kitchen hero and the mystic martial arts master will team up with Luke Cage and Daredevil for The Defenders, an upcoming Avengers-style Netflix miniseries — so, yes, maybe we will find out. 

Watch Tennant answer more fan questions in the video above. 

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