Only as far as you can throw it

I’m not sure how the saying goes but there is some expression about only trusting something as far as you can throw it.  This surely applies to technology (as in things you plug in like computers and stuff not the broader sense like the wheel or the concept of an assembly line) and when you’re talking about something expensive or something that belongs to your employer throwing is pretty well excluded as an option. Based on this logic you really can’t trust technology at all. Unless you’re willing to chuck it somewhere.