Shocked from DC current, nope.
Take her out to your vehicle, have her grab hold of the positive and the negative on the battery and show her that a DC does not “shock”.
DC will shock you to death if you crank up the amps and the voltage. I have been shocked many times while holding a steel pipe fitting to be welded, using DC current. And a nine volt battery will give you quite a tingle IF you touch the terminals to a highly conductive body part. (salty sweat)
Most drills today are operating well above 12 volts.
But in the case of the OP, I would bet it is the brush against the cow hair causing a static discharge.
