Well this could be it! the biggest week of my life. This could be the week I meet the one, the only, Mr David ‘You Can Be My Doctor Anytime’ Tennant. For real, not just in one of those dreams that I dare not reveal that I, a grown woman of ‘30 something or other’, still have.

Now, to those of you unfortunate enough to have lived through what will forever be called my “shallow Shakespeare” phase the other year, you will be familiar with my wee celebrity crush. To those that haven’t, I’d like to just mention in my own defence that I genuinely did find the experience of watching Shakespeare in Stratford-upon-Avon stunning – all three times – and I’m sure that when I look back in years to come, I’ll think that paying 20 times the face value of a ticket on eBay to sit in the same room as David Tennant wasn’t all that much money – really.

But seriously though, have you ever thought about how you would react the day you meet that one famous person you really admire? (or have a slightly unhealthy fascination with which borders on stalking?) Trust me, it rarely, if ever, lives up to your expectations.

Case in point: Rosie, one of my colleagues at Jack FM grew up adoring The Spice Girls. Posters, CDs, figurines; like most girls her age, she had them all. Recently Rosie got the chance to talk to her idol Geri Halliwell. Rosie spent ages preparing for the interview, carefully culling her pages of questions down to the utmost important in order to fit into the allotted 10 minutes. It was going to be the moment of her life. And to be fair, it started well, Geri instantly detected she had a fan on the phone and played to her audience.

Then, like a kettle which has reached boiling point, the pressure became too much. Nearly 20 years of childhood and teenage adoration gushed out in the form of three small words! Which three words? No, not Ziga, Zi Gah (what the hell did that mean anyway). It was even worse! Mid-sentence Rosie found herself blurting out “I love you”!

You know that moment in western movies where the bar doors swing open and the piano stops? I don’t want to cast dispersions on Geri, but coincidence or not, Geri’s minder stepped in at that point to quickly cut the interview short.

But back to Tennant. I know any meeting will be horrendously embarrassing.

I know at some point I will forget my 20 years of interviewing experience and become a gibbering wreck, and I know my breakfast co-hosts will ridicule me mercilessly. Thank God there’ll be a doctor nearby to deal with the pain.