Re: Garmin
The newer Garmins don't verbalise the "recalculating", they just show it on the screen.
Sometimes they need to verbalise "Woah. Stop now and back up."
A while ago I came face to face with a stuck HGV in a local hamlet. It had finally come to rest, unable to go backwards or forwards having obviously done Dabbsy's dad's trick of turning left a few yards too soon. The driver must have driven a mile or so of increasingly narrow and unsuitable roads having first been lulled into a sense of false security by several hundred yards of dead-straight road.
Wherever he wanted to go he shouldn't have started from there.