Sounds like you sprung a leak in the cooling system. A hose, radiator or water pump may have sprung a leak. Have it checked now, you don't want to overheat the engine.
Because it's sitting in the sun.
because you will choke on it. pull over and eat it standing or sitting.
She is sitting in the bathtub as she is cutting.
sitting in a running car with windows closed is any fumes released inside of car.
When this happens it is typically because your antifreeze and water mix (coolant) isn't correct. You want 50% antifreeze and 50% water to create the right coolant mix. The antifreeze will keep the car running cool while the water allows it to stay warm enough to provide heat in your vehicle. When you are sitting still the water pump isn't moving at full speed so the coolant isn't flowing through the radiator as fast and heats up a little more. As well, you are not moving so the coolant running through the radiator isn't being cooled by any forced air like it is when you are driving. Bottom line, you need to add water to your radiator. If it is full then I would suggest getting it flushed and put the correct 50/50 mix in the vehicle. Whoever filled your coolant obviously used 100% antifreeze.
The small cat running down the street would have more kinetic energy because it is in motion, whereas the large dog sitting on the sidewalk is stationary and has no kinetic energy.
Who told you that? No you can't ruin a car engine by running the air or heat while sitting in one place for an extended period of time. It's not good for the engine to sit for a long time running because oil builds up on the seals and such but that's about it.
Running, swimming, sitting, popping.
an open seat
First he was NOT Running Bull, but Sitting Bull and he wasn't on the Trail of Tears.
It may be your water pump. If the coolant isn't moving, and passing thru the heater core to provide heat, and your engine is running hot, then the coolant is just sitting in the block not being circulated and overheating. The thermostat can be wide open allowing flow but if there is none, then changign it out doesn't do a thing for your car's heating/cooling
If the engine is running it is using fuel.