Pets:
Jerry “the Thunderer” Carstairs has a pet dog named Mike. (Daring Mystery Comics 007, 1941)
Cops Attempting to Murder Fleeing Suspects:
A really concerted attempt to murder the Challenger by the cops in this issue. (Daring Mystery Comics 007, 1941)
Legitimately surprised to see a reference to drinking a Zombie cocktail in 1941 but it seems that it dates from 1934 (Human Torch v1 005b, 1941)