read tins, from SporkHack

https://github.com/Bulwersator/CopyOfSporkHack/commit/d967bc58ceffbc34d685a7bd8ff9c17177ec2716

https://github.com/Bulwersator/CopyOfSporkHack/commit/c57aa2cadebf5b2c3a580f6350806872cbed7b0f