Fear anger frustatration yes, feelings such as fear are chemicals in your body, realese the chemical pressure by satisfying your thirst of them helps.
I fell backwards off a cliff by mistake. I was shit scared so I wanked like a maniac just before I hit the ground.....
No, no...I was on my way back from a fancy dress party, I was dressed up as knight in full armour, I was even still sitting on my horse!!