ABC, I promise that if you are soundly connected to earth you will definatley die when grasping a 240 volt supply. Whether its lighting or not , you will know about it. There is an earlier post of mine describing me plugging a fluorescent fitting into some lighting track over a printing press. Because I didn't have my glasses on I did not know that the plastic cover was missing from the terminals in the special plug, so with my thumb on the live terminal, 4mtrs off the ground, I gripped the metal ,earthed track with right hand to stop it moving away from me and pushed the plug into its socket.
The current passed up my arm in excruciating waves, gripped my chest muscles, seemed to pass through my head in powerfull waves, down my other arm to my hand which was locked onto the trunking. I was blacking out and knew I had to do something so somehow kicked my feet off the steps and dropped to the ground in a shaking heap.
Do not play around with it ABC , whenever you become over confident it reaches out and bites you on the ass, gives you 1st degree burns, blinds you and causes your heart to defribulate at anything over 30 mA . I kid you not , M8. Stop doing it !!