Today I was thinking about a scam that could possibly work. [Probly a low chance, but still] [If you can improve on this scam go right ahead and do it]
Scam:
You have a "anonnomous"[Bad spelling] friend with you. Find the person that you want to scam, and say Scammer: I bet I can solo X
Noob: I doubt it.
Scammer: Wanna put a bet on that?
Noob: Sure. Scammer: I don't trust that you will pay up. Noob: I will trust me.
Scammer: Um... We'll find a middle man?
Noob: Okay. [Get your friend to be the middle man] Scammer: Time to prove that I can kill X solo!
[Have your friend ALT+F4, after he has sent the gold to you or whatever.] Scammer: Well I guess you win. 
Noob: What the f-ck the middle mans DC'd
Have a few extra pennys in your pocket after this.
Just something I thought up. Please improve on it if you can.
Thanks for reading it. 
PS. Comment on the color changes, Not sure if it's good idea.