As much as I love London's museums, I wouldn't wish someone undergoing therapy to have to deal with the hassle, stress, and rudeness that is customs by whichever party the French hired to do juxtaposed border control at St Pancras on the way back to the continent.

And does the British Museum still have that security line outside where your bags are thoroughly checked¹ for bombs by some underpaid person who takes out his frustrations on visitors? Yeah, that's good for your sanity, that is.

1: Glossed over while being berated for not following mumbled orders fast enough.