Picky? Hell, I would have billed him back for cleaning it at the same rate he was charging me. He can deal with his guy about the difference. That's just good business.
I had a roll off at my house when I shingled it. I called them to pick it up, and when I got home from work, I couldn't believe my eyes. First, they got stuck in the lawn (had rained all week) and dug huge ruts in it with the truck. So, like the smart people they were, they decided to park in the driveway and WINCH the dumpster to the truck!!! It looked liked somebody ran a D8 across my yard.
I complained, they said they wouldn't pay for the damage, and I still had to pay the bill. "Sorry sir, your yard was muddy." "Well no sh!t jackass, it's rained for a week. Since your guys knew that, perhaps they should have waited until things dried out, OR put it in the freaking driveway like I told you to in the first place, and it wouldn't have been an issue to start with!" Sure enough, I get a threatening letter about paying a few weeks later.
I had three lawn places come and give estimates to fix the damage, and haul more gravel in for where they plowed it up...$1000 average. I told them the deal, and gave them each $20 for their time.
I sent copies of the estimates in with the bill (no payment), and a lawyer's phone number that I talked to. I explained in no uncertain terms that I was previously prepared to call things even and take care of it myself, but after their behavior, I would settle for nothing less than no charge on the dumpster and 50% of the estimate price, or the next time we talked would be in small claims court. I got the check certified mail 2 days later.
Perhaps they'll think twice before doing it to the next guy.