A Proportional Response - S1-E3
Continuity mistake: When Leo asks Chairman of the Joint Chiefs Admiral Fitzwallace about the optics of hiring Charlie, a black man, to carry the president's bags, Fitzwallace's ribbons on his Navy uniform are upside-down. This mistake is very visible because he has two ribbons on the bottom when there should always be three. On his way out the door, there is one shot where Fitzwallace's ribbons have been fixed, but then as he walks out the door his ribbons are upside-down again. (00:25:50 - 00:27:10)
A Proportional Response - S1-E3
Continuity mistake: The president is snapping at everyone while looking for his glasses. Newcomer Charlie addresses Bartlet, who turns and takes off CJ's glasses he'd been trying on. Everybody freezes in surprise at Charlie's interruption, including Bartlet who can be seen holding the glasses away from his body. In the immediate next shot, Bartlet can be seen on the monitor still wearing CJ's glasses, and then interrupts Charlie while removing the glasses once more. (00:33:20)
Chosen answer: A really annoying innate lack of sense. My friends and family say the same thing all the time, and I'm endlessly trying to correct them. I think people just don't know any better and (ironically) couldn't care less that they're speaking incorrectly.