Due to an extremely light sleeping one year old I can't practice at home at night so I have to do it at another location. I go there and start to play but there's a terrible buzzing. Some investigation leads to the endpin and reveals the small cork washer had fallen out of the endpin collar and it's rolling around inside the bass. I can fix that. I loosen the strings, take down the bridge, pull the endpin and while I'm fishing the washer out I hear a "thunk"...surprisingly, it was not the soundpost; the nut fell off the neck and dropped on the floor. Ok, I can fix that too. I get the endpin back together and while sliding it back in, "thunk"...of course this time it's the soundpost. Ok, no problem, I have a setter. I lift up the bass so the post will roll back to where I can grab it and the endpin slides out onto the floor because I hadn't tightened the set screw. I slide it back in and the cork washer falls out inside the bass again. I gave up and went home before anything else went wrong. My accomplishments for the evening: one hour, about 5 notes and a disassembled bass.