Central locking

Just a little warning, just had a lovely break at Top Lodge, whilst there a motor home arrived, not long after setting up, they left the van shut the door, seconds later the central locking kicked in and locked them out, all keys inside the van, we all tried various keys to try and get them in, they are not sure what happened, appears they had'nt had the van very long, so if you have central locking make sure you do not leave the van without a set of keys, had to get the breakdown service out in the end, managed to sort it, what a worry