The direct answer is when father played Naval officer to wake us up banging things together to make loud noises as if we were in the military. But that wasn't nearly so bad as...
I was living in a half-way house. Not because I was a paroled convict that needed to be there, but because at the time I was desperate for a cheap place to live. The rooms were open and I had a roommate who was on disability. He did not work, I had to work. My work at the time required me to get up at around 4am in the morning so I could prepare then make it to public transport to my job. Obviously this required me to get to bed early. Roommate had a T.V. and had to watch his Star Trek. No headphones, and he simply did not care I had to get to sleep, which was impossible for me with his T.V. blaring.
I remember this quite clearly. After 3-4 days of this I was exhausted from lack of sleep and my head was pounding from one of the worst headaches I've experienced in my life. I wanted to kill him. Literally. Someone had mercy on me and provided me with some ibprofen. I don't remember what happened after that with my situation, just that it improved. I wasn't at that place for much longer.