WHEN to wear Depends..??
and the answer is WHEN YOU SEE AVENGERS ENDGAME
(the movie is 3.2 hours long.) -no spoilers please-

You will be able to buy official Avengers or Iron Man Depends at the concession stand in the lobby. There will be 2 loud waterfall scenes between 2 and 2 and a half hours into the movie to assist patrons to pee in unison. :^'