My neighbour (40/m) ("N") confided that his recently retired father (70/m) ("G") has started going to the casino twice a day (all day but he comes home for dinner).

G's losses affect the food they eat (multi generational household).

N doesn't really know what to do. I'm not so concerned for N, moreso his mother/G's wife.

It's not my business but, when I was a kid my boyscout leader committed suicide after gambling away his house so I'm pretty sensitive to this sort of thing. I'd like to help if I can.

Any advice?