Tie between the time I threw my back out changing the car tires and it hurt so bad to breathe I had to lie flat on the ground, and she was mad because it delayed me driving her to go do laundry.
Or the time she was mad about me installing the air conditioner in our apartment to cool down (the cats loved it too), because, "It doesn't benefit ME". That was shortly after I asked her to start paying for half of the utilities while I was unemployed. I had been paying them all myself for 3+ years, including the two times she was unemployed in that period.