I hate to say this because it makes me seem incredibly careless, but for the second time, I've found a bag of dope under the seat in my girlfriend's car...
I was trying to find my keys about a month ago, which I thought must have fallen out of my coat pocket and beneath the seat, and instead I produced a bag of dope. It was a nice surprise, especially seeing as though I was incredibly stressed out from having lost my keys and being unable to find them anywhere.
But I honestly have no idea how it could happen because I'm always careful not to drop any of the bags whenever I'm counting them, but somehow, some way, it happens. (shrugs)