What hope have we got when driving instructors teach their pupils to do this. commuting home last night, approaching island, want to get into primary position in the 2nd lane. indicate, wait for gap, still indicating, get eye contact with learner driver, she slows down, so i take the gap and thank her with a thumbs up. driving instructor obviously tells her to do this... she changes lane, undertakes me in the left lane and pulls back in front of me causing me to brake sooner than i thought i had to. completely lost it, pulled up the side of the driving instructor, luckily he had his window down... asked him if that is the way he teaches all his pupils, and i shouts over to her that she needs a new driving instructor if that's how he teaches his pupils to behave around cyclists on the road. he tells her to ignore me and carry on. dammit, should have thought to get his reg number and complain to BSM.