TBH sometimes you don't think about this stuff. Back in college, my (CS) department shared a student area with the students from the EE department, so naturall

TBH sometimes you don't think about this stuff. Back in college, my (CS) department shared a student area with the students from the EE department, so naturally a friendly rivalry evolved. There was a shared common area, and a private office for CS and EE each, both separated by lockable doors from the common area. One day, we arrived to find that the EE department had left a taunting note on a desk in our (still) locked office. At first we thought they airdropped it (since the office walls didn't reach all the way to the slightly domed ceiling), but we didn't think of the obvious: The office doors simply had their hinges on the outside. They straight up took the door off the hinges, and then put it back.