What is actually happening in the lab class?

I am sitting in my lab, updating my blog. What is lab classes actually for? i used to wonder. A 'c' window partly open with a program that has been copied from the file server and a explorer window always minimised in the task bar(ready to peep out any time). That too during the days of cricket matches, No need to ask everyone will do this. Oh!sheesh! i got to go. Unfortunately our ups is working properly. Will post soon.