Been reminded, quite strongly, of my #1 pet hate (over this Christmas especially as it happens).|
People talking with their mouths full.
It's less of a problem in a restaurant or public place as it's easier to ignore. But in a quiet room with just people talking and eating it's a different story. It's vile, but you can't really say anything about it without sounding a bit rude. Occasionally I'll give the wrong-doer a bit of an evil look but for the most part I just sit there waiting for it to be over.
I'll force my conversation partner to wait for me to finish my mouthful before I answer them, which is annoying itself as they just stare at you waiting for you to finish your mouthful. Which might take a fair few seconds depending on the food item.
/first world problem