>>1 Gangsters are gangsters. You cant change them. Rather than getting yourself involved. Why not avoid completely? You are fast, thats good enough. If thats not good enough, you can contact the police. If not, make a verdict and change your location of stay.
If you cant beat them, avoid them. Not by coming up with ingenious plans to kill them. You are no better doing that.
And for the bitcoins or whatever, I dont care. Just dont get involved.