It depends what you cool. A solid piece of muscle meat such as say a chicken breast is very unlikely to contain spore forming bacteria such as clostridium perfringens. Sloppy dishes with meat and vegetable content are the worst such as curries, stews etc.I regularly leave things to cool slowly overnight, at ambient temps. Then either reheat the next day, or put into fridge and reheat a day or two later.
Sounds like I'm dicing with death.