How to Beat the Bookies…

If you are under 18.
Bet all you money on whatever you want. If you win, have a good time spending your winnings.
If you lose, go to them and howl. Cry, scream, “I’m only 16 (or whatever). Why did you let me do it?”
It being illegal to let under 18’s place bets, you should get your money back.
Try this with every high street betting chain.