WARNING: Following contains violent content:
But it's up there on strange list.
Gf and I awoke in the middle of the night to some incredible screaming and moaning coming from the site next to ours. This middle aged dude was straight beating the &&$$ out of his wife. Very clear what was going on. She was yelling bloody murder. He got out of their tent at one point and started inviting her outside so he could "fing kill her." He then started yelling at the entire campground, stuff like "if anyone calls the cops I'll kill you", "i have a gun", etc etc. My gf was so scared she started crying. After 30 minutes or so of this he got in his truck and drove off. We were too paralyzed with fear to do anything. We finally fell back asleep, woke up in the morning, and seeing no sign of activity from their camp site (the truck was back) we packed up real quick and split.