1: Ordinary people have to find the deposit so small as to not be worthwhile, so they chuck the cans in with their normal recycling rather than returning them to claim the deposit.
2: The recycling has to go out in bags rather than bins or carts.
I'm in Michigan and even our 10¢ deposit, which was impressive in the 1970s, has ceased to be worthwhile for many people. We should've upped it to 25¢ a decade ago, and expanded it to include juice and other noncarbonated things, but I digress!
However, my city uses a big rolling bin for recycling, so there's no bag to slice open. If someone wanted to root through the bin, they could do so without making a mess.
(And if they decided to dump the bin on the street, after once occurrence I'd be sitting on the porch on trash night with a blunderbuss full o' rock-salt...)