Silly question: how do I know if a film has been used? : r/AnalogCommunity

I think I know where I messed up now, please confirm (with

I think I know where I messed up now, please confirm (with

you're kidding :,) : r/AnalogCommunity

I was going through some belongings and found this camera, what

I think I know where I messed up now, please confirm (with

What a brilliant take boys : r/AnalogCommunity

I accidentally opened like that this reusable film roll and I don

I did the silly, gimmick-y, thing, and bought the discount store

Check your Walmart : r/AnalogCommunity

They have got to be out of their mind : r/AnalogCommunity

Is there a way I can tell if this film was exposed or not? : r