I look at it as Karma. If somebody ended up with one of my kegs I would hope they would try to get it back to me. I'm not saying they should rent a truck and drive it to me personally, but they could give me a call and we could see if we have a distributor in common to try and route them back. If it's not worth my trouble to get it back then I can just tell them to keep it or whatever. In the end it shouldn't take but a few minutes to make a call and then stick it back on a truck..
I just did this the other day for somebody. Took a total of 5 minutes out of my day and the guy will get HIS PROPERTY back. The statement to just fill it and put it back in the supply chain so it can "resolve itself" is BS. All you are really saying is "its not my problem now" and passing the buck.
As a very small brewer I can't afford to buy more kegs every other week because some of my float is running around in the market with other peoples beer in them. we should be helping each other out when possible in my opinion... like i said...karma...
Blank Slate Brewing Company