Okay, imagine you're walking around just minding your own business when suddenly you realise you're trapped in a room with 2 doors. A man appears and tells you the only way to get out of the room is to go through one of the doors and have sex with whoever is in there. He tells you this
Behind door 1 there is a teenager
Behind door 2 there is an old person
So you ask him like 'so door 1, they could be like 11? Really not into that? How old's the teenager?' and the guy just says 'all i will tell you is that they are a teenager'. You ask 'and how old is this old person? Like 45? is that classed as old? cos I could handle that? 95? I dunno man.' But again all he tells you is that there is an old person behind door 2. He tells you that in both cases it will be consensual, but he doesnt say anything after you ask if an 11 year old or a 95 year old with alzheimers can really consent.
Which door do you choose?
Here is another one:
A bottle of juice or £1 worth of Greggs vouchers?
A new cd or £10 worth of Greggs vouchers?
A return flight on ryanair or £100 worth of Greggs vouchers?
2 months rent paid for you or £1000 worth of Greggs vouchers?
Using this system we should be able to find out the approximate value at which Greggs vouchers depreciate in value.