Deleting Makes Me Nervous

I'm sure that I only have things in the trash that I really want to delete. Still, numbers like this make me nervous:

A screenshot of a progress bar for emptying the trash on a mac. The progress bar has barely started to move. There's a status at the bottom that says: 'Items to delete: 797,024'

I'm mostly sure I'll still have some files left when that's done. Mostly.