If I left a stew out overnight, is it still okay to eat?

Honestly as not knowing what kind of bacterias are floating around I would not chance eating anything left out over night. All my sanitation and safety cl training is urging me to tell you no. But then you need to make up your own judgement. The worst that cold happen is you could get physicly sick, or an upset stomach. Its your choice if you want to risk food posioning.