loads of stuff but the best was a traffic light crossroads. LH lane for straight on and left, RH lane for right and officially allowed for straight on but since the right turners are usually stopped by oncoming traffic, hardly ever used for going stright on as you just have to stop and wait or try to move back over again.. Just after the junction, drops back to single lane again.
So the traffic is moving through the junction OK and some twunt behind me sees the outside is clear (no right turners). Pulls out and speeds down the outside with the intention of jumping back at the junction. Except, where it’s hardly been used except for right turns, the cleared surface stops abruptly where the rt turn is, and the straight on is still snowed up. So he hits a foot of snow and ice at about 40mph and needs now to move over to the left abruptly into a lane of moving traffic to avoid crossing the white line into the oncoming stream.
Totally loses control , ends up sideways, clips the kerb of the traffic light island hard with the rear wheel which somehow throws the back round again and onto the cleared part of the road where he regains grip sufficiently to avoid a total wipeout. The cars behind all have to drop anchor but thankfully because we’ve taken account of the conditions we’ve left enough space.
Hopefully he’ll have learnt something. i doubt it.