seeing things that aren't there?

Hi there

I was driving out of the city last week and I read a roadside sign -  "Emergency Shopping Area".

Eh?

Oh, wait!  It doesn't say "Emergency Shopping Area".  It's "Emergency Stopping Area".  Blame my stupid eyesight -

But, hey, wouldn't it be great to have a real emergency shopping area in a lay-by off the motorway?  I could be on my way to, say, a job interview and I suddenly wish I wasn't wearing my grey trousers (the ones with the huge pink polka dots on them).

But I'm approaching the "Emergency Shopping" sign.  With a squeal of brakes, I turn in to buy some lovely black trousers.  Phew, saved.....