Like lots of you, many drunk going back to random men's houses in my late teens early 20s, putting myself at risk. Most actually were nice and I had fun, but I'm sure I had sex just to avoid being raped, a couple of times.
In the early 90s, travelled all the way across Venezuela with about $5 in my pocket, and a bag of stringy mangoes, panicking, to get me back to Trinidad, where I had one friend. Could have been so stranded. Luckily I made it to Trinidad on the ferry (went to completely wrong ferry port first time) and he let me stay with him and his family. Had a brilliant time.
Stayed in a mixed-dorm hostel in Ecuador, with only one other guest, a man. He did try to rape me but I managed to fight him off and get help. That was terrifying, but the only bad experience I had in a year travelling in South America.
Went willingly into an old man's house I didn't know in New York, thinking it was my friend's house. It wasn't; she had moved out because he was so weird and scary. He wouldn't let me go unless my friend paid him for me. The negotiations went on for ages, in Polish; I don't speak Polish, so I sat there, sipping iced tea, completely oblivious to the fact that I had been kidnapped.