I still haven't received a shock. Maybe I'm just lucky.

Maybe you are stupid enough to not realise it is possible that you couuld have been dealinng with voltages that cold zap you.

If it is intended as sarcasm, try tracing the volatge throough any of the examples I gave you from Honeywell and tell me the it is not likely that the voltage you hit might not be V230 at the stat.

Please trace you route and publice it here if you think such reasoning of mine is BS, or admit these things CAN be dangerous - give me one or other rationalisation from the diagrams