I absolutely love my wife but she's really stubborn about dumb shit. Throwaway but I'm absolutely stunned to learn she doesn't know how metric measurements work. Today I fucked up by calling her out on it. She always seems to confuse ounces and milliliters but I figured she just misspoke and usually could figure out what she meant.

We have children together and now I'm starting to realize she thinks metric is just another name for the same measurements. Seriously had a huge argument about how many fluid ounces we are feeding our baby. I asked "why did you tell the pediatrician we're giving 3 mL per feeding? It's 3 oz, that's a huge difference." She looked at me completely serious and said "those are the same thing."

I said "wait, what are you talking about" and she proceeded to tell me how she learned that mL are equivalent to fluid oz in nursing school and that she didn't make a mistake. I explained that she must have misunderstood because that doesn't make sense. She swore that she was correct and she wasn't wrong.

I was stunned, then I asked why would their be two naming systems for measurements if they are the exact same? She said that metric is just the names Europeans use. Lol (We're American - shocker)

When I showed her the correct conversion on Google she suddenly backtracked and tried to say that it must have changed since she want to school (lol wat?!) and then that she actually meant ounces are equal to liters which is even worse.

Here's where I fucked up, in my shocked frustration I said "well shit, no wonder you didn't pass your exams, can't be giving people lethal doses!" Now she's pissed at me.

TL;DR - American Wife thinks an oz = mL and argues with me about metric measurements until I say that must be why she failed her nursing exams.

Edit: She makes this mistake verbally, she does know the difference in practice and can feed our baby fine. Someone mentioned she is probably thinking of 1 ml = 1 CC which is true and I should probably cut her sleep deprived ass some slack.

Update: Some of ya'll missed the part where I said this was my fuck up. What I said was mean and hurtful but I was somewhat justified because that's a potentially serious and dangerous error, I should have just approached it better.

We have discussed it and she did mean 1 mL = 1 CC but could not remember in the heat of the moment.

I posted this because it's kind of funny how much bullshit imperial vs. metric causes and this is my PSA to teach yourself and your kids the difference! Also for what it's worth she is NOT a nurse but does work in the medical field.

HEALTH CARE IS A HUMAN RIGHT. EVERYONE DESERVES FREE, QUALITY HEALTH CARE.