For.
Ilegal and causing obstruction or gross inconvenience to other people. I always instructed our au pair to be very careful when driving the Chelsea tractor (well, a Suzuki 4 wd) on the school run, and I am sure you did the same. Must say that when I did it myself, I found the selfish desire to put their little darlings as close as possible to the school gates very annoying. And they weren't even foreigners (well , a lot of them were, but that's not the point) It just wasn't British !