Not a horror one but friend sent me a WhatsApp message earlier saying our Christmas tree is really nice as she saw it on DD's Instagram. I replied saying yours is really nice 'as well' but somehow the words 'as well' were changed to 'awful' and I didn't realise until I sent it! Was that the actual iPhone that autocorrected or WhatsApp? Anyway she has a good sense of humour and thought it was funny! Tell me your good and embarrassing autocorrects that you only noticed after you pressed 'send'!