When a crackhead cuts your trees

I've had a crackhead at my house for 2 weeks cutting Oak trees down. I didn't know he was a crackhead until a neighbor who knows the crackhead community herself informed me that he was an "active crackhead". This explains why he spends 2 hours at my house and leaves for 6 hour lunch breaks, then comes back and works for 20 more minutes. I fired him Sunday. He called and begged me to let him finish the job and I said he had 2 days to finish the one tree he'd been cutting down for three days and remove the gigantic mess from my yard. This is the worst business of all businesses I've ever known existed. Crackheads are difficult to work with, I understand the necessity of drug screening now.