A very close friend of mine and I just finished the most technically difficult car repair we'd ever done. We changed the glow plugs on an '87 Mercedes 300SDL, and that required removing the intake manifold.

For some unknowable reason, the manifold is held on not with regular bolts, but allen-headed bolts. I swear allen wrenches are Satan's own cock. It took three hours at least just to get the thing off due to the impossible geometries involved, the 28-year-old rusted bolts, and the lack of better tools, but we did it.

We did it.

We changed the glow plugs, and now the car starts without resorting to insane measures.

Also, there were at least eight raccoons wandering around nearby (that was the most we spotted at once), digging through dumpsters, being raccoons, and occasionally hissing at us to go to bed.