i had two seizures as a child and never had anymore until my forties. these were just mild ones where i was in two places at once. they were not bad ones I do have to take keppra but I never have had another like when I was 5. I had no fever nor was I ill at the time. I did find out I had epilepsy though although it is not the really bad kind. good luck
According to "Seizures and Epilepsy in Childhood: A Guide" by Dr. John Freeman, et. al., after two nonfebrile seizures, there is a 72% chance of a 3rd, 58% chance of a 4th, and 29% chance of 10 or more further seizures.
I highly reccommend this book - it is a great place to start when learning about seizures and epilepsy, and helped calm me down many a time. Sadly, we've gone downhill since I first got the book 2 years ago, but it was so helpful in understanding what my son's neurologist was talking about!
Good luck nad I hope you're in the 28% that never have another one!