other people

Someone on their phone with the speaker on.

Folks who don't use their car signals.

Long lines.

Everyone's in a hurry

People yelling

People stopping in the middle of the sidwalk blocking pedestrian traffic

Someone coughing on you

Unruly children

People looking at their phone while walking, not watching where they are going.

Standing in the middle of the aisle in the grocery store visiting with friends, blocking the aisle and the display you need to get an item from.

Rude behavior.

Rusty

You open a door for yourself, a clueless rudey walks through it.

Green-head flies (at the beach in July).

Gum on a sidewalk (Revere Beach?)

People speaking loudly (? cell phone), oblivious of anyone else.

People walking, bumping into you without any acknowledgement.

They realize that they are still in their jammies.

I agree almost any of these could be the answer and are truly annoying.

I’ll add one more…people who let their pets do their business in your yard and don’t bother to pick it up. Or just let them roam and they do it anyway.

Holding a door for a person who walks through without acknowledgement of your courtesy