Hmmm. I'd be wary of VERY high IR levels on any greenie with <80mW (green) output that can pop a balloon.
If it won't pop a red balloon, but will pop a black one, it's almost certainly IR, not green. This is because a red surface absorbs green light about as well as a black surface, but red is much more transparent to IR light, than it is to green light.
Remember that the pump diode outputs 808nm IR, the Nd:YVO4 outputs 1064nm IR -much of this IR energy is transmitted through the crystals and optics and unless a quality IR filter is installed at the output of the laser - you have invisible IR energy riding the green beam.
A disturbing number of pointers recently evaluated by forum members have poor - or no - IR attenuation. This IR energy can easily exceed the green output power - by a wide margin.
BTW your eyes have zero IR attentuation either but are just as affected by it as a balloon...