Had to phone the tax credits helpline earlier and when I (finally) got through and went through security details (things like when I took our mortgage out ffs) I was asked if I wanted to set a password for future use. I agreed and was asked what my favourite subject was at school and where my first holiday was. The guy on the end of the phone seemed to find it really strange but I couldn't name either - I liked lots of subjects at school and certainly couldn't name a favourite and I have no idea where I went on holiday when I was 5 months old!! Is that so strange?!!