Believe It Or Not, These Aren't Actually Design Flaws

Manhole Covers

There's a reason manhole covers are round. It makes it nearly impossible for a person to fall inside of one. Pedestrians almost rarely fall into manholes and it's thanks to this safety-conscious design.

Horizontal Button Holes

The top button on a dress shirt is annoying yet purposeful. While it's the most difficult to get buttoned, it serves as a grip for a tie. Even though it might be a slight choking hazard, it's for the greater good of the appearance.

The More You Know

The stickiness of duct tape makes it perfect for a makeshift pet hair remover and this method is faster than vacuuming. It also works on seats in vehicles. A sponge or cloth wrapped with duct tape works great for getting into corners. Wrap duct tape around a paint roller cover, sticky side out.
War pigs were used in ancient warfare to counter against war elephants, which feared the pigs (and their squeals) and would bolt. War pigs were sometimes lit on fire to enhance this effect.
Scorpions are incredibly resilient: scientists have frozen scorpions overnight, left them in the sun the following day, and when thawed, the arthropod walked away unscathed.
Professional chefs will tell you that a damp dish towel under your mixing bowl will keep it from slipping and sliding on your counter as you mix.

Post originally appeared on Upbeat News.