@aral Jokes aside, that's the same combination from my job's office door and one hospital I visited surgical area door too.

And, in both cases, I guess the main issue wasn't the password chosen, but that someone/something demanded a lock for security and people chose the cheapest one with only support for numeric passwords to be shared with everyone in staff. And, if everyone in staff was to know the password, it can any password, even 123456. If you require people to use a harder password staff will just write it down somewhere or tell it loudly to each other when one forgets it.