We've been suffering from the Whys for a while, I think Squeaky picked them up in nursery, much the same as the Chicken Pops. Whys are extremely contagious, once one child has contracted the Whys, they will spread it to all their friends, acquaintances, and even other children that they just pass by from the comfort of a Tesco's trolley seat with remarkable efficiency.
There is no known cure for the Whys. Calpol can help to counter some of the more unpleasant aspects, but must be administered to the parent or carer, rather than the child. Gin is somewhat more effective, but must be taken with extreme care, or unintended side effects may include tears, headaches, and actually telling the child "why" in no uncertain terms.
On a more serious note, why (ha ha ha) do all our "Why?" conversations seem to end up in an unending cycle of "Why?", "I don't know", "Why?", "Because I'm not very clever", "Why?", "Because I didn't pay enough attention at school", "Why?" ad infinitum. We spent our whole car journey home from nursery today discussing why my car was clean and daddy's car wasn't. The reason being I went through the car wash over the weekend, and he didn't. Why? Because my car was dirty. Why? Because I hadn't washed it. Why? Because I was at work. Why? To earn money to buy you nice things. Why? Because otherwise you can't have nice things. Why? Because you have to pay for things. Why? Because otherwise that's stealing. Why? Because that's what it's called when you don't pay for something. Why? I don't know... and the cycle begins.
If anyone has a surefire cure for the Whys that doesn't involve medicating one or other of us, I'd be really pleased to hear from you, and you could probably make your millions selling it. Honestly, I would pay good money for a cure, and I'm sure I'm not alone in that.