I didn't, well until couple of years ago in graubunden. Apparently my girlfriend and parents found my education hilarious, as I'm sure the cows would have done if they had the capability of laughter, instead their faces simply had look of accusation which basically communicated "Prat" to me.
That said I didn't feel the need to go shooting of letters to the geminde in order to complain about the lack of warning, as, quite frankly, I'd already had it and learned my lesson.
'Every...' anything, (as in everywhere, everyone, everybody) and 'always', in fact any statement not admitting exceptions, is probably (see I cannot even use a definite form for this either) inapplicable in Switzerland.
It's the exception that proves the rule, and there are plenty of those too.
Yes, sometimes when hiking I hold one of those 'gateways' in an electric fence open for people walking the other way. Holding the plastic handle with the hook on the end in my hand I jolt every couple of seconds...
Nope, just good old barbed wire in my part of the US. I saw the occasional electric fence in the UK, so was rather surprised to see how popular they were in Switzerland when we moved here.
A friend of mine parked his car on a grass shoulder, not noticing the front body was touching a live fence wire. When the passengers tried to get out they put their foot on the ground first, and then they got a shock. That was funny!
I think I saw them growing up in Upstate NY - maybe they're more popular where there are lots of cows or horses? Certainly lots of dairy farms in NY (&VT...) and lots of horses in the Saratoga area