Note that the 'octopus card' is Hong Kong's mass transit card ( https://en.wikipedia.org/wiki/Octopus_card ); the name comes from the Chinese name, which means approximately "pass reaching in [all] eight [cardinal directions]".
You learn something new everyday ! - Thank you ..
I don't where in the world you are but might like the fact that on the London railway network we use an 'Oyster' card ;~)
