DotA 6.68c Bug & Exploit. It looks like the current map of Dota still have some bugs. Kuarinofu has found a bug with Batrider which will allow you to attack/kill your own teammates. The bug is very easy to reproduce and it can ruin a game easily. However, you can take revenge with your teammates if they don't share you the items courier, just kidding :)
Dota 6.68c Bug - The Batrider Revenge by Kuarinofu:
1. Pick Batrider and level up Firefly.
2. Buy Manta Style
3. Now Press, [Shift]+[Firefly]+[Manta]
4. Now Press [A] and attack your teammates.
5. Enjoy :)
Now it seems that Dota 6.68d is needed let's see if IceFrog releases another patch. By the way, if you found any other bugs in 6.68c please share it with us so it gets fixed in Dota v6.68d.
Disclaimer: Abusing this bug may cause rage quit of your teamates.