A while ago, I think, I started hearing and reading people use the verb 'to sit' incorrectly, but it seems to becoming increasingly common.
Such as "I am sat", "We are sat", "They were sat". Sit is a pretty regular verb. The perfect form of it (sat) is the only irregular form of it, so it makes this doubly odd.
For instance: Bustle
Never is this more literal than when you are sat in front of the telly watching Gogglebox.
Wondering where you will be sat?
Feels like yesterday we was sat in college moaning to finish
Could this error be deliberate, as a form of inverse snobbery (attempting to appear mainstream)? This might also be a particularly British thing, rather than American. Certainly all the examples I can see online seem to be from British (typically colloquial) sources.