Oil can in a line locker, that is "in use". Paper label stuck on.
Nope not getting it are you mak.
17 years line ops [amongst others] this screamed **** up central to all at the front end whose thoughts were dismissed in a similar manner to your reply.
Even with the best will in the world the "gotcha" is there.
Also ties in nicely with a number of threads on here re-airworthiness and skewed [and I'm being polite here] thinking from the top......