Found weed twice. One time it was one of those old cylinder canisters that held camera film, stuffed full of weed. Next time I was at a friends aunts house, she's cooking something on the stove, and what most of been an 8th was just chilling on the kitchen floor next to her, I still can't believe NO ONE in the entire house noticed it but me, so I snagged that as well(usually I would ask who's it was and give it back to them, but I was in dire times).
A few years ago I was at a mall, and for some reason I reached into my back pocket and inexplicably found a percocet 5, there was absolutely no reason/logical explaination as to why it would be there, still never figured that out, Ghost of a dead drug dealer?
Also, OP, take a smaller dose than you normally would, I wouldn't want to possibly OD on something I randomly found on the ground.