While I've considered myself an atheist for my whole life (also my father is an atheist), there have been events in my life so absurd that as rational as I am, that I have truly been challenged to believe they were pure coincidence, like 1/1 billion probability of happening. I'm speaking of clairvoyance, telepathy, predicting future (bad things and death). These phaenomenons happened several times to me personally and to my mother. I still am sceptic but certain events in my life have been remarkable.
Furthermore, when I was 12 or 13, I attended to an exorcism performed by a famous exorcist and was very impressed with the thing.
Where I live, I apprehended there is a sort of free exorcism "service" offered by the curia. I've read of some amazing stories of people "exorcised" but still I can't bring myself to do such a request. My problems are permanent so no exorcism would heal me. Otherwise I think I would have give a try, just even out of curiosity.