Oh ye of little faith. I actually once did go and get a cheque certified. I think it was in the mid/late 1980s, to buy a V-reg Volvo estate, because my honest face was insufficient to assuage the seller's suspicions that an ordinary cheque might not be safe enough. I should have got the swine to cough up the certification fee.
No doubt. And it would need to be a pumpkin account which expires when the presentation deadline in the certification runs out. Then the money nips back into the normal account.
Where? Who? Never heard of either.