If you’ve got something you really need to communicate, you can either:

(a) email me at ku.oc1544988535.seny1544988535ahtta1544988535m@lia1544988535m1544988535

or

(b) write your message on a large piece of paper using a black marker pen and then hold it against one of the left-hand windows on any train from London Bridge to Dartford (via Greenwich, not Lewisham). I’ll be able to see you from our bathroom window. Though you’ll need to email first to tell me which train you’ll be on.