My first year, we got a brand-new Cisco wireless adapter to replace the one we had been using for the previous few years. As the only person in the shop that day who knew how to wire, I got to chop the wall connection off and wire it to a WAGO connector - but both wires were black! A little bit of magic smoke later, I realized I had guessed wrong - and we had to use the old wireless adapter.
We've accidentally sent nearly dead batteries out onto the field on several occasions.
And our Logomotion bot was an exercise in how not to design a robot: we spent most of our six weeks working on a minibot and an arm, only to realize we couldn't extend the arm far enough to pick up tubes from the ground and had no space on the robot to attach a minibot deployment mechanism.
But we've finally learned: as of today, we know that there is a tool for attaching the FlexHub snap rings for the modulox boxes that works better than the needle-nose pliers and screwdrivers we struggled with
