That could be it. My sarcasm detector is calibrated in English Metric* (not to be confused with European Metric**). It’s possible you’re delivering your sarcasm in American Imperial*** (not to be confused with English Imperial****).
* It’s the normal metric system† that we’ll use perfectly happily unless we’ve fallen out with Europe, in which case it’s a terrible imposition and we ought to go back to using English Imperial††, we ran an empire using it, you know! Bloody Europe!
**Like English Metric only using all of it because it’s easier, and not whingeing
***Like English Imperial only different, because they’re inability to spell properly is only matched by their inability to count properly (i.e. English Imperial)
****a complicated system of measurement involving lots of fractions, multiplication and different bases. Clearly superior to the easy to use metric system.
†Except for a few bits of English Imperial we’ve kept so we feel special
††please god, don’t make us do that, we’ll have to learn maths again!