Ulysses S. Grant was arrested for speeding—on a horse
A noted equestrian, our 18th president was quite confident on a horse—perhaps too confident. While driving his horse and buggy at a furious pace during his presidential tenure, Grant was pulled over twice within the span of 24 hours. The second time, one bold police officer decided to arrest the commander-in-chief, who was ultimately given a fine. Legend has it that the officer and the president eventually became friends.
