Flys, Excellent stuff!
My 10 year old son had a habit of causing computer glitches which I was able to fix. One day he came to me in the next room and said:
"Dad, Dad, there's something wrong with the computer again".
"I'm busy, go back and re-boot it and let me know if it still doesn't work".
5 mins later, "It's no good, Dad, it's still got smoke coming out the back!"
And there was!