Yodel Course

If you're planning on spending your holidays this year in Switzerland or Austria, you have to prepare yourself for those countries. You have to know about their local customs and be able to join in. Right now we are going to start learning you a not so simple thing. You're going to take part in a Yodel Course.

This is their disclaimer:
I take no resposibility for the consequences of yodeling in social situations. This includes: lawsuits, strange looks, uproarious laughing, traffic accidents, major moves up or down in the stock martket, divorces or loss of employment. However I do accept full responsibility for the smiles and laughter the practice of yodeling might elicit.