My dad is elderly and recently widowed. He’s long done some skilled work for a neighbour for extra money as he’s low income. The neighbour gets this work very cheap and makes the most of it, my dad is an alcoholic with poor life skills so it’s quite exploitative. Since my mum died his income has dropped and the neighbour is pushier. He gives him alcohol. This feels abusive to me and I want to confront him. I’m still financially supporting my dad so it feels like I’m just giving money to his neighbour while he takes the piss. What should I do?