One of my family’s favourite humorous/passive-agressive sayings is “I bow to your low roof”, which comes from the endlessly entertaining English dub of the 1973 Japanese show, The Water Margin.
It effectively means “I’m agreeing, but only because you haven’t given me a fucking choice” because you have no choice but to duck your head to pass beneath a low roof.
It’s a great one to use on bosses who insist you do things in a stupid way, because it sounds deceptively polite and deferential.