yes, that is true. and completely normal.
Yes but be sure you are conducting to ground only on the probe and not a better path of least resistance to the ground in testing this. Better path... watch your multi-meter if you do it wrong and are a less resistance path to ground in the meter than thru you in being a better path.
Ground tests are normally fine and safe but you do want to just for a moment consider your connection to that grounding path while doing so. After that, normally fine to do, but just think for a moment about your testing this current situation. What you are holding, sitting in etc, this realizing that hopefully the fuse in the multi-meter might play a role.
Don't know but a thought that might apply in what I think about and consider before I test hot to ground each time.
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