My Dear Colleagues,
I am sure it has been said before but I will say it again.
How many times have you done your walk around with all manner of pins in and pannels open?
It is a fact of life that you often have to be back in your seat long before maintenance action is complete and that you have to rely on a 'verbal' from the ground engineer that all is buttoned up.
An aside to the 'eng' like 'You will make sure the pins are removed from the MLG and make sure those panels are secure, won't you' will not usually cause any offence.
If he tells you to go forth and multiply then at least he has received the message.
ES