During weekday, I often been asked: "So casual. Are you on leave today?"
This was always my answer: "I wish so but I'm working."
For most of the time, the next question will be: "So, this is what you wear in office as well?"
Then, my default reply will be: "No. I'm topless in the office."
You could immediately imagine how was the reaction of the other party.
Before the question mark fill up his/ her brain, I will smile at he/ she
and say: "I'm operate from home."