Why is my car shaking when stopped and smelling like burnt oil?
I'd suggest getting the Idle Air Control Valve checked. On most modern engines, the IACV can be adjusted yourself with basic tools. Some are adjusted by simply turning a screw, whereas some you may have to unscrew a small unit, and twist the inside spring. The IACV adjusts how much air is mixed with the fuel while the engine is idling. Not enough air will cause the engine to shake, as it struggles to keep going; while too much air will cause the engine to over-rev, or "breathe" (alternating high and low revving).
Yes it is like any other thing that is smoked/burnt ie cigarettes, incense etc. you can try opening windows and possibly vaccuming furnishings a spray of peppermint or LAvender essential oil can often mask the smell of weed it will go away eventually but if your worried about your mom smelling it your stuffed she knows what her house smells like.
They don't really look like anything. You will see things shaking, but you can't see an earthquake as such. It is what you feel that is more significant. You will feel everywhere shaking, the ground, the building you may be in. You may hear noises, caused by the objects shaking or what is actually happening underground. It can be very scary for people who have never experienced one.