This of course would suit a DIY page, but its admin only, as i just found out! lol.
1: Do not put fish oil on your exhaust manifold! it stinks when the engine turns on and there is smoke that resembles a fire pouring from the air vents and grille! and the smell last for weeks!
2: If you cannot find HT leads in the colour of your choice (for me, red) DO NOT, UNDER ANY CIRCUMSTANCES paint them!! i spent £42 on a new black set. i binned them after a couple of weeks. why? because the paint didnt dry, and i couldnt get them on without me, and the engine, gettn plastered in red patchy paint. and then the HT leads were covered in fingerprints in the wet paint!
o, the paint did have 2 coats. the 1st dried, but the second didnt, after 2 weeks!
i now have a days work trying to remove enamel paint from dirty black areas! grrrr.
please, add your own silly c*ck ups. such as using kitchen roll to check the oil, then forget to bin the kitchen roll, and then watch it ignite on the manifold runners while you are talking to the neighbour!! (not me, honest.

and its ok, non-coupe related incident

)
and also things like, forgettn to add the oil filler cap after filling, and then driving miles. just to find that you have a big oil stain to clean up from everywhere! o, and no oil!
add your own below.