Never thought about doing that. Growing up, I was always taught that God wasn't about doing harm unto others, its up to you to believe in him or not. A little something called "faith." God, in my belief, does specific things that seem miraculous, something that only he himself has the power to do. Those, in my opinion, are little tips that help you in your journey of developing your relationship with him. Why should he have to prove his existence? You should be the one proving yourself to him. After all, he is our creator. He gave us the gift of life, why would he want to take it away when our purpose has not yet been served? In my opinion, when someone asks a question like that, there is something missing in them, purpose maybe. The only way out is faith.
I hope that didn't sound too preachy, just throwing in my two cents.
Have you ever been bitten by a snake?