I really dislike my FIL. He's a millionaire, some self made, but definitely had a huge leg up, as his parents gifted him a house and a business (long before they died, it was not inheritance, but very generous gifts when he was young enough to really use them to get ahead).
He is as tight as they come. Never helps his own children, in the way that he was helped, despite BIL being on the breadline. Keeps all his money to himself, splurges on several holidays a year for him and his new wife (who is also filthy rich), business class seats, top hotels etc.
All while his (other) son lives in abject poverty, in a small house that he can't even afford to heat. They have kids too. So he has 3 grandchildren that also go without.
Even if we all go out for a meal (very rare), FIL doesn't offer to get the bill. FIL had his kids when he was very young, so by the time DH & BIL inherit, they will probably be in their 70's, which will be far too late to really make a difference.
He also never asks about anyone else's news or how they are, and drones on endlessly about his latest holidays. If you pipe up with something about yourself he glazes over and doesn't reply.
I can't stand meanness.