Forget about cellphones causing car accidents. In the UK, a ridiculous 300,000 car crashes have been caused by GPS. And, according to a survey commissioned by Brit tabloid rag The Mirror, 1.5 million drivers have swerved through traffic when following their sat-nav's instructions a little too closely.

The list of errors caused by slavishly obeying absurd commands would be hilarious if they weren't so dangerous: Driving onto a railway line, heading the wrong way down one-way streets, hurtling headlong into ditches, getting stuck under bridges and ignoring road signs. The instructions given to GPS users by Direct Line Insurance, which carried out the survey, are so obvious they should not need to be stated: