Oh I'm very suspicious - but also mostly harmless!

The majority of websites appear to view me as a bot of some kind. Many gadgets, including "smart" household units such as washing machines, do not recognise me as a real person / user for the purposes of pressing buttons. Many automatic doors on shops and banks etc similarly don't recognise me as real physical person - whereas apparently a large 2' by 4' flooring plank/slab does count!