26Boosting

Wheelchair athletes with spinal injuries will sometimes intentionally injure themselves on the lower body (e.g. break a toe), causing their bodies to respond by raising blood pressure and enhancing their performance. This practice has been banned as cheating.
27. In 1993 there was a proposal by a private company to build a giant advertising billboard in outer space that would appear roughly the same size and brightness as the moon. The project didn't meet funding and inspired a bill to ban all advertisements in outer space.
28. Most Americans aren't aware of blackcurrant flavor (one of the most popular soft drink and confection flavors in the world) due to a ban on the plant in the 1900s because of its role in spreading disease among white pines, a principal industry of the growing American republic.
29. Lucy's Law bans pet shops and dealers in England from selling puppies and kittens. It was named after Lucy, a Cavalier King Charles Spaniel who developed fused hips, a curved spine, bald patches and epilepsy after years of mistreatment in the puppy farming system.
30. When the US navy banned alcohol on ships in July 1914, they held one last massive party and invited ships from several nations to help drink the last of the booze. Many of the participants in the party would become enemies weeks later when World War 1 broke out.
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31Send Me to Heaven

The mobile game "Send Me to Heaven" involves throwing your phone as high in the air as you can. The creator said he made it with the hope of destroying as many iPhones as possible, but Apple banned it from the App Store.
32. In 2007 when Minnesota passed an anti-smoking law that banned smoking in public buildings, there was a line that said only actors who had to smoke were allowed to do so. Thus, the Barnacles Bar declared that everyone in the bar is an actor in a live performance.
33. Witches are banned from flying above 150 meters in the landlocked African nation of Eswatini. Any witch caught flying their broomstick above the limit faces arrest and a hefty R500,000 fine according to the country’s civil aviation authority. There is no penalty for flying below 150 meters.
34. During World War 2, Russian soldiers took “heat pills” that kept them warm in the winter; however, they would also lose weight despite eating well. 2,4-dinitrophenol spikes metabolic rate as potential energy is lost as heat—it is banned as a weight loss aid in the US as an overdose can cook people to death.
35. Talking drums were used in Africa for centuries to transmit messages over long distances by mimicking speech. When these were brought to America during the slave trade, they were banned because slaves used them to transmit messages their masters couldn't decipher.
