Teslas and Jukes on the road: I often wish I had an RPG to blast them off the roads.
Also, over the weekend I've three times been stuck behind dullards in Volvos, who probably think they are being safe drivers when they're doing 10mph below the speed limit ("no, it's 'up to' 60mph") (actually, one of them was doing 35 in the 60 road and then sped up to 37 at the next 30 sign - go figure).