I like mechanical systems better than electrical or electronic systems. I trust them more. Do you know why? It’s like this:
In the winter, when the air is dry and you build up a static charge walking around, and you walk over to the metal sink to empty out the dregs of your tea, and the liquid pours out of the cup and strikes the sink, that harmless looking metal spoon – which is still in the cup, and which you are holding onto with one finger – will deliver a surprising and painful shock which has traveled to you from the sink UP THE COLD TEA.
Electricity may be useful, but it is a jerk.