post your worst idea thread

I replaced some air ride shocks on an Audi with coil overs all four sides, I did the front driver side first and put the wheel back on and did not tighten the lugs. Took two days, well when all done I had three wheels off and put those back on and tightened them forgetting about the first one. All excited to do the test drive got to the end of the neighborhood and car started shaking I was like what the hell is that. Went a little further and thump. Wheel came off. Luckily the rotor landed inside the wheel. No damage.
I put a wheel on my Honda and got half way to school and the vibrations caused me to pull over, 3 of 4 lug nuts were missing! I too 1 off each of the other 3 wheels to get me to school. First day and all...