The best reason for working in a Cerebral Palsy Charity Shop is meeting the people who come in. You meet the most amazing, weird, crazy and friendly people ever. You help them and they give something back in return. There is always something to do.
Cons
The down side is some people aren't so friendly, and some of the colleagues can be backstabbing and often say stuff about you behind your back if you do something rather than saying it to your face.