Last half of year I live in a hotel. I do not have my workbench here nor do I have extensive electronics part collection but I do have some basic equipment. And I do use it.
Pictured here is last thing that I made - voltage and current monitor. It has one input, three outputs, display and two switches (that I forgot to order). On bottom there is an PIC, sense and LED resistors. Pretty simple SMD board (45x72 mm) as it goes.
What it does? Basically it just displays voltage, current or power on it's display for selected input or output.
Once I assembled it, I left it turned on for a while, pressing button here and there. Ok, since buttons are missing, pressing is probably not the correct word for what I was doing, but you get the drift. There is nothing like long-term abuse to bring code bugs out.
As I was leaving for work, I took one last glance at device, stopped, powered it off and hid it in the drawer. Call me crazy but I haven't dared to leave it on like that for cleaning lady to see.
Somehow I think that she would only see some clock-like device with some wires coming out and numbers that change. Even more innocent-looking things were misidentified.