At the end, Lois is calmly sitting at the table and tells Hal that Claire died; she then cheerfully jumps up to check on the cookies she's baking. She pops one oven mitt on the wrong way (thumb side out), but two seconds later when she's taking the Snickerdoodles out of the oven both mitts are on the right way. Update: After putting the gloves on, Lois moves her hands and quickly flicks the hand with the glove in question so that the glove's thumb is where it belongs, just as anyone would do.
When Mr. Herkabe asks the class who the victor was in the disputed presidential election of 1896, Malcolm says, as an intentional wrong answer due to being blackmailed by Herkabe, the winner was Tilden. There was no disputed presidential election in 1896. The disputed presidential election involving Tilden (who lost to Rutherford B. Hayes) occurred 20 years earlier in 1876.