Oh, I’ve got another one I just remembered.
Last year on my 21st birthday, my friends and I (one being the Doper RandMcNally) went to go see Letters from Iwo Jima. I’m a big military history nerd who was in Vegas for her 21st birthday, so I mean, what else could I have done? 
(I don’t think this should be in spoilers, since it’s. . . you know. . . a historical fact, but just in case: BEWARE! SPOILERS!)
Anyway, there is a part in the movie where some of the Japanese soldiers are committing suicide via hand grenade the the chest. The scene is hardly for the faint of heart, but they honestly could have made it much worse than it was. It was during this scene that the elderly woman behind us (who may very well have been alive during the WW2) exclaimed, “Ugh! This is just GRATUITOUS!”
We couldn’t help it- the three of us burst out laughing (which surely caused her to tell all of her friends about the rude youngins in front of her in the theater
). I mean, honestly, who goes to see a movie about the Battle of Iwo Jima- an incredibly deadly, bloody, dirty, awful battle- and complains about the gratuitous violence?