Saturday 

And while the rest of the Bangkok population push trolleys around supermarkets and play computer games in the peace and quiet of their homes, I'm faced with my busiest day of the week. 

Those who don't push trolleys or play computer games, come and sit in my lesson with expectant looks on their faces. They expect me to open a little trapdoor in the top of their heads and insert a small component that has ' English Language' stamped on it. There are horrified looks all round when I imply that learning the English language involves opening books to certain page numbers and performing alien functions such as speaking, moving and getting up out of your chair. 

It all comes as quite a shock.