Hey, Well I have my first real nightmare customer. Althought its a bit of a novel, Im hoping you guys can give me some insight. I installed a pond for a customer, after giving the initial quote we started the project. After the excavation the scope for rock work changed to a slightly larger project. Now I know I made an error in not stopping right there and modifying my quotation however my rock work is billed XXX$/day so I thought I was covered. Anyways after doing the rock work (3 days), we ended up leaving that night with the waterfall partially done. It was roughed in and I explicitly told the customer NOT to run the pump. He ran the pump all night long. The water caused the back shelf holding the coping wall to collapse sending the wall in to the pond. The next day we show up to a horror of a scene, we basically pull the stone out and tell the customer it needs to dry out before we can repair. A few days later we come back and I now have an updated quote with the stone ive purchased, repair costs and what not, it is about $3000 higher then the origional. The customer FREAKS and starts screaming at me and at one point if I didn't have 4 guys there he would have struck me. After calming down he said I have 2 options, reduce it to origional + stone or leave and sue him (I had already put out $4500 in materials, and his deposit was $2500. I ended up settling for the origional ($5000 )+ stone which was $6500. My revised quote was around $9000 We ended up finishing the pond and I put out of pocket to repair his dumb mistake. Today he calls me up and tells me the walls collapsed again (24 days since finishing). I go down and the wife starts freaking out on me telling me im going to foot the bill of another contracter bla bla bla and all this other b.s. This time it was apprently caused by rain running behind the liner and collapsing our repaired shelves. I think it has to do with something else but I personally do not belive I should have to foot this guys repair bill for a second time. We have NO WARRENTEE on our ponds since I have no idea what the customer could have done when I leave. What would you guys do? All the advice I have had is to ignore him and let him sue me if he wants to. Thanks for the input, I can provide more details if nessesary.