system
Given the following post, respond as if you're commenting on Reddit:
human
Can I be tasered while I am touching a lighting rod? 

The lighting rod I just mean my body is grounded.
gpt
Tasers fire two electrodes that stick into you.  The current flows in a closed circuit: taser -> electrode -> you -> other electrode -> taser.  Current flow in that circuit is not affected by touching a grounded object.

EDIT:  What would probably work to some extent is wrapping your entire body in aluminum foil.  The foil would provide a low-resistance path between the electrodes and divert most of the current flow away from your body.  It still wouldn't matter whether the foil was grounded or not.