Okey dokey, I've done it!
I have exercised my rights under section 80F of the Employment Rights Act 1996.

Yes indeedy.  Settle down at the back there.

For those who aren't already in the know, section 80F gives us little people the right to ask for flexible working arrangements which will help care for a kid or an elderly relative.

It also gives the employer the right to say no.

See what they did there??

I can ask, and they can say no.  A full blown cynic would say that being given the right to be told no wasn't that much of an advance in workers rights.  
And a half hearted cynic would agree.

 But.. but ..but this doesn't have to be a complete waste of time.
What about you place a bet?
Go on

I've pointed out that I can cover the same work, and not inconvenience any of my team if they let me work four longer days a week instead of five