Fair enough - so were people only experiencing the 'mild shocks' when touching this path to ground as well as the urn? Even if that were the case, in the absence of faults, I presume that the only path for any current would be through the 'tiny capacitances' I mentioned, which presumably would limit it to a very low level.
Indeed, but I would count that as 'a fault', and the recent comments I've made have all been qualified by "in the absence of a fault". What you say is, of course, the reason why it's so important that these appliances are (if Class I) earthed - the combination of 'a fault' (whether called 'leakage' or whatever) and the absence of an earth is obviously highly undesirable (aka dangerous)!
Quite so - as I said, that (absent earth and L-E fault) is the nightmare combination of circumstances that one does not want to experience. If the earth is present, the appearance of the L-E fault would (hopefully) cause something to trip (or a fuse to blow).
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