Some people are afraid of spiders, others are afraid of heights, but for Toni Street, her biggest fear is being trapped in a small confined space.
Unfortunately, that's exactly what happened to her during her F45 workout - after she got trapped in a bathroom cubical.
Being extremely claustrophobic, the mother-of-three went into a panic after discovering she was locked in.
She was stuck there for at least 15 minutes before she was eventually freed by people who heard her yelling for help.
The whole experience sounds absolutely horrifying!
Watch above to hear Toni explain it in her own words.