Although sympathetic to her plight, the Doctor couldn't help wondering if Rose's zit-hiding helmet was hindering their attempts to blend in with the locals.
Let me see, a picture of the doctor looking shocked to find a big shiny black helmet menacing his rear? Hmmm, no, sorry. I can't think of anything funny to say about that.
"It is the business of the future to be dangerous." - Alfred North Whitehead, philosopher.
After Tennant's untimely death, the Doctor Who production team decided to finish the series by using his body as a life size puppet. The Mill easily erased the black-clad puppeteer in the broadcast shots...