What's the most uncomfortable you've been watching a film with someone else?

I want to know your nightmare experiences with showing/watching movies with others, especially family members/dates!

For me, it was unquestionably while I was still in high school. My brother had lent me a copy of Nymphomaniac volumes one and two by Lars Von Trier, and I was on the second.

So, my dad comes downstairs and plops down on the couch next to me. I go to turn off the movie immediately but he insisted that I leave it on so as not to bother me. Cue abortion scene.

I literally wanted to die the whole time. If you've ever seen this film you know how long it lasts, too... Shiver