There's always a first!

Is it left unlocked?! Not exactly.

I locked the door through the door knob, however, the padlock is nowhere to be found.

I called my colleague asking about the padlock, and she said it's inside her office and already on the way back home on board a bus. So, I had to leave the door without the padlock.

I was just surprised that it happened after so many years working here. Is it because the person is so stressed, and she forgot to put back the padlock after opening the door this morning? Or is it due to forgetfulness? Or is it something else?

Whatever the reason, there's always a first!!!