I'm meeting this person tomorrow. I've known him many years in a professional capacity but with a bit of a crossover into friendship. He knows my DM, DH, DC and we all like him very much. However, he's been increasing erratic and the past two times I've seen him in a professional capacity he has been either drunk or horribly hungover and smelling strongly of stale booze - often late or cancelling at the last minute. His life is unravelling fast and he's asked to borrow a small amount of money for groceries. I said yes (and have mentally written that money off) but also asked if he'd meet me for coffee and a chat. I think he must have alienated a lot of people close to him in order to need to ask me to borrow money but I wanted to say to him something along the lines of "look I was happy to help with loan that one time but I think you have a problem and need to seek help."
Can anyone advise what is the kindest way to say this? Anything else I can do or say that is more likely to resonate with him?