Oh Dear ruffled a few feathers.
In the interests of harmony I withdraw the word thorough and apologise to anyone involved.
Now can we think about preflights and how on occasion we do less than a perfect job.
Over the decades as a pilot and as a 737 check airman I've looked at a fair few aeroplanes and also watched pilots on IOE doing the same. Occasionally I've found things. Indeed found items which from the grime had been thus for some flights. I have also doubtless missed many items. Fortunately none of which came back to bite me. It's not that we are not trying but...Complacency Kills.