How to annoy your sat nav

Dont update it for four years,on the way to the meet we turned off on a round about onto a road the sat nav didn't know existed,we use Tims voice and he just didn't know what to do,we kept getting instructions like turn right in 200 yards or left in 300 yards with no side roads at all he was in the middle of a load of fields and couldn't cope

We like to ignore ours on occasions because we know it's wrong and It got rather irate at us saying right turn faster and faster but last time we took that right turn we ended up in the Middle of a packed Caernarfon centre with Dandy in tow and trying to reverse outside the courthouse.

We were on the new bit of the A30 in Cornwall a few year ago, the sat nav wasn't updated, it also kept getting all confused as well. As it thought we were driving through a field, we showed it the road, it made no difference.