My car has needed some work for quite some time now.
I bought all the necessary items to change my oil a few days ago, but just got around to doing it this morning.
I pulled the plug and let all the oil drain out of the pan. When it looked like it was done, I put the plug back in and moved the drain pan out of the way so I could change my oil filter.
As I'm unscrewing the filter, I'm suddenly met with a face-full of motor oil. I managed to get out from underneath the car and away before it got in my mouth and eyes, but some of it went up my nose. For the rest of the day, all I could smell was oil.
I do believe I have learned a very important lesson today.