Shocking footage has surfaced showing a pensioner calmly driving his mobility scooter along a busy dual carriageway. The nerve-wracking clip was captured on the A21 between Tonbridge and Pembury, in the direction of Hastings. Whilst the exact timing of the recording remains unclear, it begins by showing traffic congestion building up on the dual carriageway. Filmed from what appears to be a van, the footage then reveals the camera vehicle pulling out from behind a lorry as the driver wonders