Neither ohm-meters nor 9V are dangerous
I am a US Sailor, that has been an electrician for 19 years. When I was a kid, I used to put 9V batteries on my tongue to check if they were good or not. A 9V battery does not push enough amps to kill you.
As a matter of fact, if you feel the need to put the contact leads of an ohm-meter into your body..... that will not kill you either.
Also, one more food for thought, many of us have played with meggers in our careers. They just give a real big jolt, but then again there is not enough amps to kill you.
A megger is similiar to the old arcade games that you would hold onto the two handles as the game would pass a small amount of voltage through and then slowly increase it till hopefully you will let go.