50 Reasons Why 'Time Crash' Is The Most Perfect 8 Minutes of 'Doctor Who' Ever

#6  The 'high-five'. It's such a simple, funny moment that totally sums up each of the Doctors. Tennant's Doctor tries to be cool and 'trendy', despite his barely hidden geekiness, while Davison is completely oblivious to the concept of the 'high-five'. It's a tiny sequence, and utterly hilarious and adorable. Genius!