During the few years I was doing the school run and making the tea for my three primary school grandchildren, I was entrusted with the care of a Tamagotchi which was accidentaly left with me over a weekend.
Tamagotchi - Wikipedia, the free encyclopedia
My young grandson gave me instruction over the phone and I fed and shovelled crap for the little blighter for two days. I know he had an irrational devotion to that little gadget, and I didn't realise that, if neglected, it just 'died' but would 'live again'.