Not many people know about this

As a learner driver, I find it extremely annoying when people don't indicate, because most of my actions depend on what I see.

I was watching a late night comedy show (I think Fallon) and there was a segment about worst fatherly advice you were ever given and one girl said something like- " Don't ever use your blinkers, no one needs to know where you're going"

DO THIS! And if you are on a bike, DO THIS TOO

Aren't you supposed to turn it on before you turn not after? Because my mom turns it on while she turns or changes lanes and it annoys the crap out of me! A lot of people in Florida do this and it makes me psychotic!!!