Bricks in toilets!

[Moshii]

I think I've realised why there are bricks in some toilets.If you have a regular toilet then you can remove the lid to see the water reservoir. If you put a brick in it, you'll use less water when you flush. A funny anecdote. :)

[shadowsfm]

sounds right to me

[Krystal109]

I think it's also a joke, like taking a dump = leaving a brick.