You know you're a fan of spooks when...

[almh]

...when you watch someone acting very suspiciously on a train (standing in the doorway, looking around, and getting off at last minute,) and immediately assume that they're a spy, and proceed to watch them until your train arrives.

I texted my mum to say that I was watching a spy, and her response was "KEEP OBSERVING STOP HARRY IS DEPENDING ON YOU STOP END" It made me laugh sooo much

...when your mum's best attempts at trying to persuade you to learnt how to drive is "How are you going to be any use to Harry if you can't drive?" I fail to see the logic in that step...