A brake torque is something you can do while driving a car. You keep one foot on the brake, hit the gas with the other foot, and take your foot off the brake. Oftentimes, this results in propelling your car forward while squealing your tires.

A kind person would refrain from doing these at night or near neighborhoods.

Storing my batteries indoors was a requirement for having them replaced under my GreenWorks warranty. I recommend checking yours just in case.