One of the absolute best things we all can do is, help crash Bitcoin. Why? The concept of Bitcoin encryption and usage involves some radical thinking and scripting technology. Has everyone thought of all the possibilities? Probably not. But if we all work hard at crashing Bitcoin, we will discover any potential flaws that it might have, and then we will know what has to be done to keep Bitcoin working effectively. So, let's keep on trying to crash Bitcoin as hard as we can. We will only improve it by doing so.
I'm pretty sure that you aren't going to find a flaw anytime soon.
Have fun wasting your time hunting.