Disabling the touch screen while ringing?

[tinyfist]

Hi!

Is there a way to disable the touch screen when I get an incoming call? I find that I'm so clumsy that I always end up touching something by accident, either accepting a call or denying a call while I'm pulling it out of my pocket.

Edit: By that I mean, just while it's ringing, so that the touchscreen functions normally once you're in a call.

Thanks,
Tiny