In 1905, a royal decree was issued to Donald Trump’s grandfather ordering him to leave Bavaria and never come back after he failed to do military service.
US Presidents are prohibited by the Secret Service from going to the top of the Gateway Arch in St Louis, MO.
Richard Nixon ordered a nuclear attack on North Korea while drunk.
US President Benjamin Harrison had electric lights installed in the White House, but would sleep with the lights on because he was too afraid to touch the switches. To be fair, old school light switches aren’t like the ones we have on the walls today. They were ungrounded toggles, either spinners or levers, which physically broke the connection with a very distinct popping sound. A mild shock wasn’t unheard of.
The only police officer to arrest a sitting President was William H. West, a black Civil War veteran. He arrested President Ulysses S. Grant for speeding on his horse in 1872, for which the President paid a $20 bond.