The inexplicable disappearance of the words "sitting" and "standing".
"I'm sat on a chair."
No you're not. You're SITTING on a chair.
"I'm stood here in the crowd."
Nope. Standing.
Oh yes, I experience all of these on a daily basis in my office building. They also have the most ridiculous set of lifts I've ever come across.
There's 4 lifts A, B, C, D
There's a button to call lifts A and B
There's a separate button to call lifts C and D (which are directly opposite)
A and...
The same at pedestrian crossings. You're standing there next to a quite clearly lit button, yet someone will come up and press it again as if it's going to make the lights change more quickly.