Originally Posted by
T8191
Passports ... back in 2014, the Agent at MLA rather rudely stuck our bag receipts on the back cover of our passports. As it transpired, it provided a convenient place to write in large letters our first initials, thus providing an instant external check of whose passport is which. So, in retrospect, I'm grateful to MLA.
BA agents seem to do that - so far - it's always been on MY passport, which results in an easy check - "Does it have a damn big black sticky area you can't get rid of? Yes ... then it's mine".