Whilst on a driving lesson with another instructor, a Riskybiz car (with no student, just the instructor) attempted to stop me pulling into the overtaking lane to move past a tractor on a dual carriageway - note, there was plenty of space for me to pull into the overtaking lane, but the car seemingly sped up. (I even clarified this with my instructor, who was happy to point out mistakes in my lessons, but they confirmed that I had done no wrong and there was plenty of space) The instructor then proceeded to flash me from behind multiple times, assumingly in anger and then UNDERTAKE me on a dual carriageway just get level with me and stare across at me for a few seconds, seemingly to intimidate a learner, as we approached a busy roundabout. Whilst this didn't bother me, as I was paying attention to approaching the roundabout, my instructor was appalled and angered by his behaviour. It was only after my lesson finished that it sunk in that a driving instructor deliberately sped up to attempt to stop me from overtaking a slow-moving vehicle. Thankfully for me, I was a few months into lessons at the time, had it been a student's first time on a dual-carriageway, it could have ended very differently. Whether this instructor would have done the same to a regular driver, whether it was a case of road rage or whether he tried to intimidate a learner, only he'll know. In summary, I would AVOID Riskybiz, and what a fitting name that is, undertaking a learner approaching a large & busy roundabout! Plenty of other instructors in the area who don't have road-rage and try to intimidate other drivers, or worse, learners! Read Less