I think you'll find it covers up the swearing! or perhaps an instructor shouting Snowploooooowwwww!! All the Bulgarians sound the same when they shout that so you're never quite sure if it is you they are talking to!
I also love they way they say gondola.
Gon as in gone away
do as in doe a deer a female deer..........
la as in Teletubby Laa, Laa!