iPhone Touchscreen Went Crazy While Plugged In??

[Smilex]

I was charging my phone and using it.
The cord that the charger was plugged into is a little bit bent (Not a smart idea I know) and my touchscreen went crazy it was almost like it had a mind of it's own. Like for example, I pressed to go on Facebook it would blink to the Facebook screen then go black and back to Facebook.
Did I just wreck my phone?

I have an iPhone 4.

NOTE : I am charging it with a different cord now and it's being normal I'm just curious why it did that. I'm a bit worried my phone will stop working. /:

 

[TriforceofTime]

I had a faulty cord as well, it was torn a little bit, and it drove my iPhone 3GS crazy. (Probably was short circuiting the phone. It would sometimes charge, touchscreen would not respond, etc. Took it off it worked fine. Used another charger and it was fine. The cable is just bad.