WARNING: The following story is likely to make your blood boil.
Shannon Watts - a mother of five from Colorado and founder of pro-gun control organization Moms Demand Action - shared on Twitter Sunday that young passengers getting on board a flight from Denver to Minneapolis were not allowed down the walkway unless they changed outfits.
Two girls in particular, one of whom was 10 years old, were barred from boarding because they were wearing leggings.
They had to actually cover up more and wait for the next flight to Minnesota.
The incident has gone viral - with everyone from People Magazine to The New York Times picking it up - and United responded to Watts on Twitter by writing that they “have the right to refuse transport for passengers who are barefoot or not properly clothed."
As used in this context, that response has not sat well with many people on social media, including quite a few you've probably heard of...