I failed one yesterday, and I am about to fail one tomorrow. I have my hopes up about yesterday's, since everyone else also says they failed it, but tomorrow's is just because I only went to two of the lectures, so I really haven't a leg to stand on.
I also got a 3 in STEP2, which is a failure in as much as that nobody really cares if it's less than a 2, and I already had a 2 to get into my university, and I needed 1,1 for Cambridge.