He is angry at everyone for not giving him money maybe? This is common with our difficult adults and is a form of emotional blackmail to make you give in. You are not alone....and I feel it is not useful for us and for them if we give in. He is too old to throw a toddler tantrum and get his way. He needs to know he is an adult and has to find his own way...he can do it. Its just harder. And the adults who bring us here like things done for them and easy so they get toddler like angry if we wont. Dont take this personally, please.
Try not to obsess. Its a mean game they play.