Way back in drivers ed, so long ago it was still a free course in high school, the teacher called using the turn signal begging. Here in California it is required to use it prior to making a turn or lane change to show your intent. Too many idiots think it's their key to kingdom no matter what the conditions are. Still someone should have cooled their jets.
Obviously.
Signal begging. I like that.
I deal with morons who turn their signal on even before they look to see if the lane is open and clear.
It isn’t. I’m in that lane and am overtaking and passing them. Do I have the obligation to slow down and let them in? Nope.