Originally posted by Itharus:

I've found waves tend to send carts flying, quite hilarious.

Never heard of the box trick though, that's a trip. Do they get knocked off by waves, too?

I suppose they could depending on which boat and so on. I bet they fall off the raft in a storm. But, they FLOAT :) . Once in the water, you can't get them back aboard, but you can at least mark it and get the stuff. I have never lost one on a longship or karve, but I don't really need them often.