I've tried a couple of flights from Gatwick to Cointrin/Geneva (LSGG) using a high altitude flight plan landing on RWY 5 at LSGG.
ATC scared the snot out of me the first couple of times because they vector me around a mountain just before final and I would swear I'm scraping the treetops.
I tried the same flight in my Beech 350, which is equipped with ground radar and, sure enough, I missed that mountain by about 100 feet.
ATC is eating too much chocolate.