Just a thought I use to do 20 yard rolloffs. Did it 2 times and thats it, I had people rummaging threw it all hours of the night. The first one no one touched, but the second time the scavangers picked out lawn mowers, bicycles, and what ever they thought was a prize. It was a bigger hassel than anything. But if the yard you go threw has lids on them with a lock your set.