Ive read so many threads (and also come across in my own personal life) a situation where there is an asymmetrical relationahip like this. One person is doing all the giving and the other takes and takes without ever offering anything back. In effect they have really got their claws in.
One of the surest ways of breaking the cycle is to physically take some time away. Take a holiday or go visit some relatives or travel on business. The reason/explanation does not matter. When you "return" be a lot more brisk and distant and unable to do the same favours. Your work/family life has got busier, the organizations have changed their policies, etc. This will enable you to put the relationship (if indeed you want to keep it) on a more professional basis whereby you only employ him as a tradesperson on the basis of being a customer.
An opportunity to reset the boundaries.
What were the first ever records that you bought and when?
4 Years On…..Health-wise, Has Anything Changed?