Dude, don't even offer him extra money.
My painter asked me to pay him the entire cost of the paint in advance, I refused, he asked me to take the car out, when he saw me doing it he stopped me and said okay I'll do it but material k paise dedein, I told him that once he plans to start, he can come along and I'll buy him the material. Khich k rakho in sab ko nahi to ye wali class baaz nahi ati. I told them paisay tumhari marzi k, kaam meri marzi ka. I went to the workshop and they weren't working, I asked him the reason and he said apki gaari ab eid k baad start karengy, main ne ek do calls ghumayi aur mere bande agaye workshop pe, ab main subha 10 baje bhi jaata hoon to meri gaari k saath lage hote hain. In logoun k saath hamdardi k saath chal kr main ne dekh liya hai k ye sirf apko churi lagate hain, inko sirf labor ki tarha treat karo to ap bhi khush aur ye bhi.