This is a question I was first asked in primary school, by a small boy with an awful haircut and a smirk on his face (That first pot of hair-gel made us all feel so much older than our years, but at eight we just didn't have the carefully sculpted stubble or the desirable, industry-standard skeletal facial features required to look like the guy from the Shockwaves advert, and the family photos never let us forget it).