STUPID PEOPLE

i dont understand how 
stupid people survive
like my dad
above 60 years of age
comes out and says 
"caviar tastes so good 
when youve brushed your teeth"
with a huge smile on his face
which is quite 
uncommon for him
i say
"its because of the mint
mom used to have it that 
way when she was yo-"
dad rules over that with 
"no its the toothpaste"
......i just dont get it