Cracker question because helium balloons are actually a pretty controversial topic. Some people argue that they are harmful to the environment because on returning to Earth, animals mistake them ...

An animal is usually killed from swallowing ... both biodegradable and non-biodegradable lighter-than-air gas or helium balloons would be banned from sale, import, and distribution.

Helium is notoriously hard to contain because ... Unless you spend a lot of time blowing up balloon animals, this probably won’t affect you. Still, we thought it was an interesting piece ...