symbolic meaning versus literal meaning

it's well known 

that some humans have neural circuitry to be good at math 

and that some humans have neural circuitry to be good at sports 

but it's less well known 

that some humans don't have neural circuitry for humour 

and that some humans don't have neural circuitry 

for understanding difference between symbolic meaning and literal meaning 

this could increase misunderstandings 

example 1:

if one human knows another human 

and knows that another human seem to lack humour 

then one human avoids making certain jokes 

because another human could misunderstand those jokes as literally meant 

example 2:

if a human knows another human 

and knows that another human seem to lack understanding of symbolic meaning

then human avoids making symbolic explanations 

because another human could misunderstand those symbolic explanations as literally meant