I'll give this one a little credit for at least attempting the correct use of indicators, but his lane discipline could do with some work. Read the road markings next time.
Despite knowing people queuing behind your car to get petrol, you spend a ridiculous amount of time chatting to your mate, leaving everyone waiting despite the fact you could have easily moved cars and chatted elsewhere, how would you react if was you left waiting I wonder.
This guy is a serious danger on the roads and needs his licence revoking before he causes a serious accident. His dangerous driving has been captured on dashcam and sent to the police. Be expecting a visit from the police shortly.
Aggressive tailgating driver with poor forward planning.