Any chance you could share this post with Rob and say, 'That's how I feel about mechanical things!'?

I think he sort of gets it on an intellectual level, but he just can't really fully get his head around it somehow, if you know what I mean. Rather like I know intellectually that there are people out there who don't find Terry Pratchett books funny, but I can't actually put myself in that position and fully understand where they're coming from.

Besides, he's been known to override our satnav and produce a better route himself on occasion (annoying but useful) so I suspect he might not empathise with your position in the same way I do.