This has been known about for quite sometime. I believe it has to be in liveview as well when the laser hits it.
Im just curious how canon would handle a warranty repair on such instance as there is certainly no warnings from them about the possibility of this happening. So would it be user area and no free fix/replacement from canon?
Well, I'd rather that than hitting my eye. Concentrating that energy even further through a lens could be very damaging to your eyesight!
Also, I imagine it doesn't matter if it's in liveview or not, as long as it hits the sensor and it's the right intensity/etc.