You could also go to Ikea, find the most uncomfortable seat they have, and sit down it in. Stick another right next to you, another one right in front of you, so it touches your knees. Sit there for hours on end with nothing to eat and nothing to drink. Find someone dressed in green and tell them to stand in front of you, scoffing their face, while you get none. And feel good at the thought of saving £2 on that ticket.