So. The one almost constant thing that I see coming out of threads like this is the wealth of experiences and occurrences that some of you have had and that it's often indicated that they were not reported or recorded in some fashion.
8Pieced says, in his quite interesting 13 paragraphs, that he had once had a similar issue and wished he'd MOR'd it...Well, in his opinion it may not have needed an MOR, but it could have been recorded somehow/somewhere within his operating company, who then, if evidenced enough, may have decided to install a warning light as a Modification.
Hindsight is wonderful!
Anyway, Ive said my piece - and I'm going back to reading the Mail.