BIL and wife have been housing FIL for two years, built separate accommodation on their land using proceeds from FIL's house sale and have been managing his finances ever since. Soon after he moved, his health deteriorated, and they got a live in carer to stay with him. DH has just found out all FIL's money has gone. FIL now has to move to care home which will be paid for by local council as not enough for private care in the accommodation as he needs round the clock care. In the meantime BIL has asked DH to pay for the private carers until FIL moves as apparently the money ran out months ago. DH has no money and asked me to help pay as I have savings. He doesn't expect any of it will be paid back, circa several thousand. AIBU to say no? BIL and wife have been managing finances and said nothing till now