Ways not to lock your bike

in my understanding this is the worst place. Well, Bethnal Green, maybe not outside the station?
I had my bike locked near the station a Friday night, locked with a friend so two massive Abus locks to both frames and all four wheels. Came out and my bloody forks had been stolen...
My friend who lives in BG was going home once and saw some dude with an angle grinder (or something, I don't understand tools I they don't fit my bike) cutting every single lock of every single bike on his street.
I now never leave my bike locked in BG, if I have to I make sure it has two looks and that I can keep an eye on it.

Time for a beater.