Hurk

Hurk. Huuuurk. This is the sound that one makes when gagging up morning coffee because a fellow passenger does one of the following:

Clips her fingernails, allowing the bits to fly around.

Makes his own contribution to global warming through gluteal methane release. Smells like last night was curry.

Decides to pick his brains, quite literally. We are talking second knuckle here, people.

Makes that sound of sucking phlegm from the nose clear into the stomach. Is there a name for that?

Absently plays with his two veg through his sweatpants like he's watching telly on the sofa.

Hurk.