I managed to break 2 QA Test HITs >_<.
I did 2, doing both question and answer with myself, and then both had "Auto-accept next" checked, so I accidentally took 2 more at the same time, closed one, realized what I had done, re-opened it, saw it wasn't pairing me with myself, returned it, so I wouldn't have split-focus, and then after sending 2 questions to my other partner (he answered the first, then the second, I never got an answer), it let the timer count down for his answer, down to 10 seconds... and then stuck there forever
.
I blame me.