Is it bad if I leave my car unattended when changing oil?

Whenever I change my oil, I usually leave it overnight so that I can get as much oil out as possible. Is this really necessary to do? And by doing so, am I putting my engine in danger by allowing foreign material to possibly enter the drain hole?Is it bad if I leave my car unattended when changing oil?I don't like to leave the oil pump dry that long. also the wind could blow dirt in if it's outside.
Is it bad if I leave my car unattended when changing oil?
it doesnt matter. but yeah leaving it open could lead to problems. you can just put new oil in, new filter, close the cap and you're done.
Is it bad if I leave my car unattended when changing oil?
actually i do all the time, and have for years....its fine :)
It's not really necessary, but it'll be OK unless a snake crawls up in there....lol