I can remeber only 2 times of me actually losing weed by accident.

The first time was when I was tokin on our deck out back. I was down to my last 2 joints, so I decided to smoke one. I get about 1/2 done, and my dumbass drops it, and it falls inbetween one of the cracks. I couldn't even fish it out. It was all soggy from the snow anyways. We then tore down the deck a few years later, and it was still there. I found it, but decided to toss it.

The second time was when I was at my friends place, and I used his coffee grinder to bust up some herb for a joint. His lid was well used and was sticky with resin, so when I tried to pull the top off, it wouldn't come off. I pulled on the top too hard and all the weed came spilling out, and onto his carpet. If it was his table or hard surface floor, who cares, but no, I had to spill it on the carpet. Son of a bitch I thought.

Other than that, I don't recall losing any other weed.