Who said "I don't play well with others."?

This quote is attributed to Tony Stark.

I don't play well with others. - Tony Stark

"I don't play well with others."

Tony Stark

"I am Iron Man."

"Genius, billionaire, playboy, philanthropist."

"Sometimes you gotta run before you can walk."

"I'm not saying I'm Batman. I'm just saying nobody's ever seen me and Batman in the same room."