I was helping my Dad replacing a telephone jack back in "the day". This was an old twisted-wire POTS line, and I needed both hands free, so I held the wires in my mouth so they wouldn't fall back into the wall . . . when a call came in! In those days, an analog North American phone rang by putting 48VDC across the two terminals and then reversing the voltage (IIRC) 6 or 7 times a second, effectively creating a 96V peak to peak square wave. I spit that thing out faster than rancid milk. That taste! That sensation!

As to the Scotch Highland Whisky, I prefer a single malt neat, although I'm told I should try it with a bit of water. I do not care for Islay or Speyside. Those I'd have to spit out like the phone wires. Makes me think a bunch of woad-painted Pictish warriors built a peat fire in my mouth! No offense to woad-painted Picts, natch.