This is going back to when I started here (in '94) and things are different now but…
After I was offered this job I was asked to come onto site a few days before starting to sort a few bits and bobs out. As I was being walked off-site the guy from HR said "We don't have a dress code here but everyone on your grade wears a shirt and tie". So I turned up on my first day in suit, shirt and tie, got a few odd looks and gradually it dawned that everyone on my grade wore trousers, shirt and tie. Managers wore a suit.
Like I say, things are very different now and I wear pretty much what I like depending on what I'm doing and who I'm meeting. There is a general slide towards casualness as the week goes on.
Anyway, spoons – put the slightly off-kilter and spray them with contact nerve toxin?