I think... I think you should just go for it!

It's quite exciting living in London some times. 

On Sunday I saw a truck load of Nazi soldiers storm my local pub.  Just a film shoot.

Tonight I saw  a high speed car chase go past me twice while I was walking home from the gym.  The second time the car being chased cut down the wrong side of the road at a busy junction, nearly crashed.  The police car chasing it lost it and went straight over Blackfriars Bridge instead before doubling back and continuing its pursuit.  The helicopter overhead probably had it in sight the whole time.  Not a film shoot.