And finally (in case you thought you would never get rid of me today)

... what I want to know is this:

Why is it that you can be bursting for a pee - I mean really desperate for the loo - and when you get there, sometimes you pee a magnificent humungous on-and-on-and-on kind of pee, and sometimes not very much really - but still the same amount of desperate?

What is it?

Have they put different sizes of jugs inside there or something?

What? Why? I don't know...