Not my footage and hopefully nobody here:
In this scenario I often also use a hand signal (legal/appropriate MTO hand signal, not some random arm waving! - lol). If they don't see the signal light, the arm movement usually gets their attention.... and keep checking those mirrors!Two near misses today well out riding in the country. Signal is on for a left turn off a side road onto another side road, driver behind just could not wait and passed me right before I was going to make the turn. Good thing I always check the mirror.