Things are pretty laid back where I work - the Geography Department of a University. When I change from my cycling clothes into my work clothes I often pop on a pair of mocasin slippers, which have become something of a trademark over the years. They are getting pretty old and tatty now, but they are SO comfortable I just can't stand the idea of getting rid of them.
One year I took my them on a week long field trip. Some students got together and kidnapped my slippers and held them to ransom. On the last night I had to complete a set of tasks to secure their release. Getting a bra was the hardest... (Note: I did not do anything unethical!)
These same slippers were also responsible for me mentally scarring my eldest daughter. When she was at the college near where I work, we used to meet up for lunch every Thursday. One day I was running late and did not change out of my slippers. It was not until I got home that night that I found how mortified she had been. I was never, ever to meet her wearing those skanky slippers again. (Note, though, that she had not turned down lunch!) She never forgave me for that. Even when she was in hospital she ordered me not to wear them when visiting her!
I love my slippers.