Humans aren't completely logical creatures, which is why they tend to say things that they don't mean. Reasons vary, but it's almost always related to the psychological and/or physiological state of the person on the occasion that something regretful or outrageous is said.
For example, someone says "I'm so hungry I could eat a chupacabra". That doesn't mean they could literally eat a chupacabra. It's a statement made in a state of hunger. If you don't take the mental state of the person into account, then you'll think he's a liar if he doesn't eat a chupacabra.
Thankfully, humans are more intelligent than that and can correlate mental state with verbal expressions to deduce when it's appropriate to take something literally or not.
Humans aren't completely logical creatures, which is why they tend to say things that they don't mean. Reasons vary, but it's almost always related to the psychological and/or physiological state of the person on the occasion that something regretful or outrageous is said.
For example, someone says "I'm so hungry I could eat a chupacabra". That doesn't mean they could literally eat a chupacabra. It's a statement made in a state of hunger. If you don't take the mental state of the person into account, then you'll think he's a liar if he doesn't eat a chupacabra.
Thankfully, humans are more intelligent than that and can correlate mental state with verbal expressions to deduce when it's appropriate to take something literally or not.
You're looking into it way too much bro.