My 8 year old PC started behaving very badly and appears to be on its last legs as it started to make weird noises and crashed. As it is an old machine I thought "nothing to lose" and gave it a couple of good thumps. It sprang into life again and although the fault returns intermittently, it has given me a chance to back up everything.

I find impact technology is also useful when a car park machine lets your coin drop straight through -a good thump will normally make it swallow the coin.

Does anyone else have examples of using this much under rated way of dealing with things.