Like the title asks, what were your worst throws?
Mine:
I was doing my One Shot playthrough last night (On Easy, but still ridiculously tense and awesome), and I'm back in comms way later in the game. I want the Alien on the other side of the damn room and I equip a noise maker. I pull back a little bit from the wall I'm hiding behind and throw. This deposits the noise maker on the top of the wall directly in front of me.
I'm sure the colour drained from my face, and I might have gurgled something incredulous. What saved me was the survivor hiding a few feet away. He saw the Alien as it came to investigate and popped up to be all action hero star, which allowed me to slink away from the noisemaker and hide under a desk to collect my composure.