What Kiera Wilmot claims started as a harmless experiment is now a nightmare for the 16-year-old Florida native.

Wilmot, a Bartow High School student, was arrested at her school last week for allegedly detonating a water bottle filled with an explosive concoction of common household chemicals. According to the Miami New Times, "[A] police report … indicates Wilmot mixed toilet bowl cleaner and aluminum foil — a combination that has inspired hundreds of YouTube videos and generally produces a fairly unimpressive explosion."

One teen told Florida-based WTSP News 10 that Wilmot merely wanted to see what would happen when those chemicals mixed.

The experiment reportedly created a small explosion that caused the bottle's top to pop off and produced smoke. Although no one was hurt and no property was damaged, Wilmot was charged with “possession/discharge of a weapon on school property and discharging a destructive device,” according to WTSP. Both charges are felonies.

WTSP also reports that Wilmot has been expelled and will now finish high school in an expulsion program.