What grinds your gears?

little family guy quote but I want honest answers to see what in the world annoys people on this forum.

one of my biggest hates is when I see people wasteing food, the farmers ETC have worked hard to produce that food and people are just throwing it away yes it doesn’t affect the producers directly but it does affect them adventually as if people keep throwing away their food and leaving it at restraunts then the owners will think people don’t like it and stop buying it so it can affect them, and on top of this people in third world countries would die to get a good meal that we in this country and other richer countries would think was nothing, whenever I see a homless person and have enough money I will go into a shop or fast food restraint and buy them a meal of some sort and the look on their face when you give them it is amazing I suggest you try it at some point, if each one of us helped a single different person each week the world would be a much better place.