No one has hurt me recently so this is easy! Or hard depending on how you look at it!
I figure it's not what people do to you that matters but the way you react. I guess if someone did something that hurt me then I'd have to reassess the situation - did I do something that actually allowed them to think that behaviour was appropriate/why did they think doing that was ok/is it someone who is important to me and I'd be willing to forgive them/is it someone I can "de-friend" etc.
I think there's no point dwelling on the past so it's always better to move onwards and upwards, no matter the situation. Maybe that's why I can't think of a time when someone has hurt me.