I have a few. Can't say them out loud (except to DH).
MIL & FIL - multi millionaires. Spend loads of money on themselves, lavish holidays, sports cars, only the very best restaurants etc. Never ever do they give a penny to their adult children (and one is flat broke). This is despite them both having been given property and a thriving business by a parent themselves.
My Dad - Overbearing, alcoholic, violent outbursts etc, all through our childhood. He's now decrepit and I have to do so much for him. I resent it.
Brother - keeps saying he's broke, whilst living like a rockstar. Just spend £20k on a holiday, lives in a £600k house, drives top of the range car, but often claims poverty - stop lying!
And breathe......
Anyone else?